I can, therefore I am.
By failing to prepare, you are preparing to fail.
Never complain and never explain.
It's always too early to quit.
Problems are not stop signs, they are guidelines.
You never know what motivates you.
Do not weep do not wax indignant. Understand.
Always desire to learn something useful.
Quality is not an act, it is a habit.
If you're going through hell, keep going.
The attempt to combine wisdom and power has only rarely been successful and then only for a short while.