We make a living by what we get, but we make a life by what we give.
Nothing endures but personal qualities.
I believe things cannot make themselves impossible.
The time is always right to do what is right.
Simplicity is the ultimate sophistication.
Do not let what you cannot do interfere with what you can do.
What worries you, masters you.
It's not that I'm so smart, it's just that I stay with problems longer.
We don't see things as they are, we see them as we are.