The law ... allows rich as well as poor to sleep under bridges.

Universal peace will be realized, not because man will become better, but because a new order of things, a new science, new economic necessities, will impose peace.

We find it hard to picture to ourselves the state of mind of a man of older days who firmly believed that the Earth was the centre of the Universe, and that all the heavenly bodies revolved around it. He could feel beneath his feet the writhings of the damned amid the flames; very likely he had seen with his own eyes and smelt with his own nostrils the sulphurous fumes of Hell escaping from some fissure in the rocks. Looking upwards, he beheld ... the incorruptible firmament, wherein the stars hung like so many lamps.

True education is the ability to discern the difference between what you do know and what you don't.

Sometimes one day in a difference place gives you more than ten years of a life at home.

People who don't count won't count.

What frightens us most in a madman is his sane conversation.