The best preparation for tomorrow is doing your best today.
Every discovery in science opens up a new set of questions, and that's what makes it so exciting.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Sustained outrage makes you stupid.
