All that we know is nothing can be known.

All men's souls are immortal, but the souls of the righteous are immortal and divine.

Slanderers do not hurt me because they do not hit me.

The invention of writing will produce forgetfulness in the minds of those who learn to use it, because they will not practice their memory. Their trust in writing, produced by external characters which are no part of themselves, will discourage the use of their own memory within them. You have invented an elixir not of memory, but of reminding; and you offer your pupils the appearance of wisdom, not true wisdom.

I love to go and see all the things I am happy without.

My divine sign indicates the future to me.

Wars and revolutions and battles are due simply and solely to the body and its desires. All wars are undertaken for the acquisition of wealth; and the reason why we have to acquire wealth is the body, because we are slaves in its service.