To know oneself, one should assert oneself.
If you think you can do it, you can.
Quality is not an act, it is a habit.
After a storm comes a calm.
Never complain and never explain.
Expect problems and eat them for breakfast.
Well done is better than well said.
Go for it now. The future is promised to no one.
If you're going through hell, keep going.
I can, therefore I am.
The great accomplishment of Jobs's life is how effectively he put his idiosyncrasies - his petulance, his narcissism, and his rudeness - in the service of perfection.