People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents.
It marks a big step in your development when you come to realize that other people can help you do a better job than you could do alone.
As I grow older, I pay less attention to what men say. I just watch what they do.
All honor's wounds are self-inflicted.
Surplus wealth is a sacred trust to be managed for the good of others.
Concentration is my motto - first honesty, then industry, then concentration.