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The Propeller – 21 Career Lessons and One Incredible WWII Story! – 7-20-2025

Life: 21 Pieces of Career Advice They Don’t Teach You in School

I’ve had the chance to wear a lot of hats over the years – DJ, tech guru, entrepreneur, pilot, board member, TV Star (It was a cable access show, but I was the Star!) and occasionally, the guy who fixes what someone else broke. Through all of it, one truth keeps coming back: school teaches you formulas and facts, but the real career lessons? You learn those the hard way.

So, here’s a collection of 21 lessons I wish I had learned earlier. These are all things that have made me extremely valuable and successful in every role I have had.  Whether you’re launching your first career, starting a new business, or transitioning into something new after years in a field, these are the insights that stick with you long after the webinars and onboarding manuals fade.

1. Be valuable.
Value creation is the foundation. If you consistently solve real problems, good things tend to follow, including money, opportunity, freedom. If you’re not sure where to start, look around and ask, “How can I make things better here?”

 

Be Valuable To Others - Inspirational Advice Stock Image - Image of ...


2. Fast results are usually flimsy.
Building anything meaningful takes time. Whether it’s a career, a business, or your reputation, slow and steady is the game. Instant success often fades just as fast.  With that being said, do not move slowly, either.  Constant forward progress is always needed.

3. Be the one who figures things out.
In any job, you’ll face tasks you weren’t trained for. Don’t freeze. Do your homework, ask smart questions, and deliver. People notice the ones who solve problems without drama.

4. Forget the style points.
Getting things done beats looking cool while trying. A basic solution that works will always outshine an over-engineered one that doesn’t.

5. People work with people they like.
Being competent is step one. Being likable, honest, and easy to collaborate with gives you a long-term edge.

6. Real opportunities don’t come with flashing lights.
They show up quietly. They look like side projects, awkward meetings, or someone casually asking for help. Pay attention and act on them.  I’ve done some cool things in my life and been afforded some amazing opportunities, and people all the time are calling me lucky.  It isn’t luck.

7. Effort matters, but results pay.
You might be working hard, but are you producing? Focus on output. You don’t get paid for trying; you get paid for delivering results.

8. Big wins require big inputs.
You’ll go through seasons where work demands more than feels reasonable. That’s okay. Just don’t stay in that season forever.

9. Feedback is your friend.
Most people say they want feedback, but only really mean the positive kind. If you can learn to seek out and apply constructive feedback, you’ll improve faster than everyone avoiding it.  Find those friends and coworkers who will be honest with you, they will be your most valuable cohorts.  Don’t just seek out those who are positive about everything just to keep people happy.

10. Get in rooms where you’re unsure you belong.
That uncomfortable feeling usually means growth is on the other side. Be the person who steps into those rooms, not the one who waits for an invitation.

11. Focus on doing, not talking.
Talkers sound good in meetings. Doers get the results that earn trust and promotions. If in doubt, default to action.

12. Potential is great, but only if you deliver.
Early in your career, people will compliment your promise. Later, they’ll only judge your performance. Keep growing, but also keep delivering.

13. Everything matters.
From how you write emails to how you handle small requests; people are always watching. Small moments build your professional brand.

14. Learn to sell.
Whether it’s your ideas, your skills, or your product, being able to clearly communicate value is a top-tier skill in every field.

 

Always Be Closing GIFs | Tenor


15. Build a reputation for reliability.
Be the person others can count on, every time. It may not make headlines, but it builds trust, and trust leads to bigger opportunities.

16. Work hard at things that matter.
Hard work is rarely wasted, especially when it’s focused on something with meaning. You’ll grow either way, even if the outcome isn’t what you expected.

17. Follow your energy, not just your passion.
Passion is unpredictable and sometimes misleading. Pay attention to what energizes you. That’s where the good stuff starts.

18. Choose your games wisely.
Success is often about self-awareness. Know your strengths, find the lanes where they shine, and avoid games rigged against you.

19. Speak up.
If you want something, more responsibility, a raise, a new role – ask. Don’t assume people will notice. Clear communication changes careers.

20. The old-school stuff still matters.
Show up on time, listen well, keep your word, and shake hands like you mean it. These simple habits never go out of style.

21. Your employer probably doesn’t care as much as you think.
Even good bosses are under pressure. Companies make hard decisions. Protect yourself – keep learning, keep networking, and never rely on someone else to manage your career.

Careers are long games. You’re not going to win them with hacks or shortcuts. But if you apply even a few of these principles consistently, you’ll get further than most.

Take what resonates. Apply it. Share it with someone who’s just getting started or someone who’s stuck in the middle.

If you’re working on a career pivot, launching something new, or just trying to level up, I’m always happy to swap notes, especially if you’re in tech or just trying to navigate the wild intersection of work and life.

History: Operation Illusion: The Creative Soldiers Who Outsmarted Hitler and the Nazi’s

I’ve always been drawn to stories like this, hidden corners of history where creativity trumps brute force. The Ghost Army is one of those stories. And the more I learn about it, the more I’m reminded that sometimes, the simplest tools, applied with the sharpest minds, can change the course of history.

They didn’t carry rifles. They didn’t drop bombs. The soldiers of the Ghost Army were artists, sound engineers, set designers, and illusionists. Instead of bullets, they used rubber tanks, fake radio transmissions, and sheer creativity to mislead and confuse the Nazis in the final stretch of World War II. Their mission was to make the enemy believe they were facing an army 20 times larger than what was actually there. And it worked.

By 1944, the Allies had landed in France. D-Day was in the rearview, but every push deeper into occupied Europe came with a heavy price. The military needed every advantage it could get, so they turned to deception. Enter the 23rd Headquarters Special Troops, better known today as the Ghost Army.

The unit was just 1,100 men strong, but their job was to impersonate more than 30,000 troops. They created entire phantom divisions using inflatable tanks, fake artillery, decoy convoys, and pre-recorded battle sounds. Massive speakers would blast the sound of tanks rolling and soldiers shouting across the French countryside at night. It was an illusion show on the battlefield.

They were using 1940s tech; canvas, air pumps, paint, and analog audio, and pulling off results that even today’s military-grade CGI and AI might admire. I can’t help but compare it to the tools we have now: Deepfakes, real-time audio clones, location spoofing – those are today’s illusions. But back then? They did it all with rubber, rumor, and a good sense of storytelling.
 

Fort Leonard Wood examines WWII 'Ghost Army' deception tactics ...

Their tactics were clever: a blank field would be transformed overnight into what looked like a full-blown armored division. Dummy tanks lined up in formation, phony radio chatter buzzing through the airwaves, and actors dressed as officers would sit in cafés, “accidentally” dropping intel for enemy ears. It was military misdirection, part theater, part psychological warfare.

The Germans believed it. Again, and again. In one of their most impressive acts, Operation Viersen in 1945, fewer than 1,100 Ghost Army troops managed to convince German forces that two entire divisions were preparing to cross the Rhine. While the enemy redeployed to face the phantom threat, the real U.S. forces crossed the river miles away, unopposed.

And here’s the thing that really strikes me: none of this required lasers or satellites. No advanced code or precision drones. Just brains, brushes, and a belief in the power of performance. It’s a great reminder that simplicity doesn’t mean weakness. Sometimes the smartest solutions are the simplest ones.

Among the Ghost Army’s ranks were artists who later became legends. Fashion icon Bill Blass. Painter Ellsworth Kelly. Sculptor Art Kane. They weren’t just sketching war scenes; they were designing fake convoys and painting tanks that would never fire a shell. Their work was part camouflage, part concept art, and entirely effective.

For decades, their efforts remained classified. They weren’t given medals or mentioned in history books. Many of them went to their graves never having talked about what they did. But eventually, their story came to light, through declassified files, personal letters, and grainy photos of inflatable tanks half-buried in European mud.

All told, the Ghost Army carried out over 20 deception missions, often just a few miles from real German forces. They saved thousands of lives by making the enemy guess wrong over and over. And not one of them ever fired a real gun in combat.

It wasn’t until 2022, nearly 80 years later, that the U.S. officially recognized the Ghost Army’s service with the Congressional Gold Medal. Long overdue, but fitting for a group that proved that creativity, strategy, and just a little bit of mischief can win battles.

As someone who loves digging into history and finding these incredible, overlooked stories, this one stands out. It reminds me that in a world chasing bigger, faster, and louder, there’s still immense power in subtlety, simplicity, and imagination.

Sometimes, the most powerful weapon isn’t force. It’s the ability to make someone believe something that isn’t there.

Quote of the Week
“The bee is more honored than other animals, not because she labors, but because she labors for others.”
Saint John Chrysostom



This ancient quote speaks to the power of service. It reminds us that true greatness isn’t just in working hard, but in working with purpose, for the benefit of others. In our careers, communities, and daily interactions, the most respected contributions are often those that uplift and support the people around us. It’s a quiet but powerful challenge: are we building just for ourselves, or creating value that ripples outward? Like the bee, we become remarkable not by what we produce, but by who we’re producing it for.

Until next time, keep learning, stay curious, and remember, simple ideas, well executed, can change everything.

 

This is re-published from the weekly email sent by Leonard Mack entitled The Propeller.  To subscribe, visit https://www.LeonardMack.com/subscribe and read it every Sunday evening.


This intellectual nourishment is intended for informational purposes only. One should not construe anything herein as being legal, tax, investment, financial, or other advice.


My rule is this – I have no advice to give, only experience to share. I have no interest in being a guru or telling people what they should do. Rather, I share my own experience because there is no right or wrong. Your mileage may vary.