In the words of Thomas J Watson, IBM Founder - IBM Principles to live by: A Primer for Company Top Management (Lest you forget)
Nothing so conclusively proves a man's ability to lead others as what he does from day to day to lead himself.
Whenever an individual or a business decides that success has been attained, progress stops.
Every time we've moved ahead in IBM, it was because someone was willing to take a chance, put his head on the block, and try something new.
A manager is an assistant to his men.
Once an organization loses its spirit of pioneering and rests on its early work, its progress stops.
You don't hear things that are bad about your company unless you ask. It is easy to hear good tidings, but you have to scratch to get the bad news.
Don't make friends who are comfortable to be with. Make friends who will force you to lever yourself up.