The happiest is the person who suffers the least pain; the most miserable who enjoys the least pleasure.
The human mind treats a new idea the same way the body treats a strange protein; it rejects it.
No.
I am not young enough to know everything.
Insanity: doing the same thing over and over again and expecting different results.
Don't worry about the world coming to an end today. It's already tomorrow in Australia.
The undertaking of a new action brings new strength.