The greatest of all mysteries is the man himself.

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 do nothing but go about persuading you all, old and young alike, not to take thought for your persons or your properties, but and chiefly to care about the greatest improvement of the soul.

Sometimes you have to let go to see if there was anything worth holding onto.

I am confident that there truly is such a thing as living again, that the living spring from the dead, and that the souls of the dead are in existence.

The uninitiated are those who believe in nothing except what they can grasp in their hands, and who deny the existence of all that is invisible.

Nothing is to be preferred before justice.