Astronomy compels the soul to look upwards and leads us from this world to another.

The soul should concentrate itself by itself.

Whatever deceives men seems to produce a magical enchantment.

Not only is the old man twice a child, but also the man who is drunk.

When two friends are in the mood to chat, we have to go about it in a gentler and more dialectical way. By 'more dialectical,' I mean not only that we give real responses, but that we base our responses solely on what the interlocutor admits that he himself knows.

Beauty of style and harmony and grace and good rhythm depend on simplicity - I mean the true simplicity of a rightly and nobly ordered mind and character, not that other simplicity which is only a euphemism for folly.

Health is a consumation of a love affair of all the organs of the body.