“I have six locks on my door all in a row. When I go out, I lock every other one. I figure no matter how long somebody stands there picking the locks, they are always locking three.”

Success is not dependent upon external conditions; it is governed by our mental attitude.

The measure of intelligence is the ability to change.

The tragedy of life is what dies inside a man while he lives.

Where there is no longer love, there is no longer anything.

I look upon all the world as my parish.

I have no special talent. I am only passionately curious.