Obedience may have its uses, but it is no substitute for willing, uncoerced co-operation.
I'm so glad I never feel important, it does complicate life!
Ambition is pitiless. Any merit that it cannot use it finds despicable.
A stumbling block to the pessimist is a stepping-stone to the optimist.
The more we simplify our material needs the more we are free to think of other things.
Strength that goes wrong is even more dangerous than weakness that goes wrong.