There are innumerable worlds of different sizes. In some there is neither sun not moon, in others they are larger than in ours and others have more than one. These worlds are at irregular distances, more in one direction and less in another, and some are flourishing, others declining. Here they come into being, there they die, and they are distroyed by collision with one another. Some of the worlds have no animal or vegetable life nor any water.

Our sins are more easily remembered than our good deeds.

Good means not [merely] not to do wrong, but rather not to desire to do wrong.

Nature . . . has buried truth deep in the bottom of the sea.

Everywhere man blames nature and fate yet his fate is mostly but the echo of his character and passion, his mistakes and his weaknesses.

Happiness resides not in possessions, and not in gold, happiness dwells in the soul.

According to convention there is a sweet and a bitter, a hot and a cold, and according to convention, there is an order. In truth, there are atoms and a void.