The brand is just a lagging indicator of a company's culture.
Learn by doing. Theory is nice, but nothing replaces actual experience.
You've gotta love the game. To become really good, you need to live it and sleep it.
The biggest (and hardest) lesson I've learned in life is that the external world is just a reflection of the world within.
...the best leaders are servant leaders - they serve those they lead.
If you're worried about putting food on the table or putting a roof over your head, that stress is definitely will contribute to unhappiness, but once you have your basic needs met then incremental money.