A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

"The best way to lead is to be authentic."

We need to be part of the solution, not part of the problem.

I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.