Think of life as a terminal illness, because, if you do, you will live it with joy and passion, as it ought to be lived.
The human mind treats a new idea the same way the body treats a strange protein; it rejects it.
The true mystery of the world is the visible, not the invisible.
If you think taking care of yourself is selfish, change your mind. If you don't, you're simply ducking your responsibilities.
If you aren't fired with enthusiasm, you will be fired with enthusiasm.
Repetition does not transform a lie into a truth.
The Americans have need of the telephone, but we do not. We have plenty of messenger boys.