There are infinite worlds both like and unlike this world of ours. For the atoms being infinite in number... are borne on far out into space.

There is no such thing as justice in the abstract; it is merely a compact between men in their various relations with each other, in whatever circumstances they may be, that they will neither injure nor be injured.

If death causes you no pain when you're dead, it is foolish to allow the fear of it to cause you pain now.

When someone admits one and rejects another which is equally in accordance with the appearances, it is clear that he has quitted all physical explanation and descended into myth.

We must consider both the ultimate end and all clear sensory evidence, to which we refer our opinions; for otherwise everything will be full of uncertainty and confusion.

A free life cannot acquire many possessions, because this is not easy to do without servility to mobs or monarchs.

The mind that is much elevated and insolent with prosperity, and cast down with adversity, is generally abject and base.