Ordinary people seem not to realize that those who really apply themselves in the right way to philosophy are directly and of their own accord preparing themselves for dying and death.

The highest realms of thought are impossible to reach without first attaining an understanding of compassion.

Be of good hope in the face of death. Believe in this one truth for certain, that no evil can befall a good man either in life or death, and that his fate is not a matter of indifference to the gods.

I only know one thing, and that is I know nothing

To Believe without evidence and demonstration is an act of ignorance and folly

I only know how little I know

Regard your good name as the richest jewel yoou can possibly be possessed of.