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.

The person who can laugh with life has developed deep roots with confidence and faith-faith in oneself, in people and in the world, as contrasted to negative ideas with distrust and discouragement.

It is hard to fight against anger: to master it is the mark of a rational man.

Beautiful objects are wrought by study through effort, but ugly things are reaped automatically without toil.

The whole Earth is at the hand of the wise man, since the fatherland of an elevated soul is the Universe.

By convention sweet is sweet, by convention bitter is bitter, by convention hot is hot, by convention cold is cold, by convention color is color. But in reality there are atoms and the void. That is, the objects of sense are supposed to be real and it is customary to regard them as such, but in truth they are not. Only the atoms and the void are real.

Do not trust all men, but trust men of worth; the former course is silly, the latter a mark of prudence.