Some have courage in pleasures, and some in pains: some in desires, and some in fears, and some are cowards under the same conditions.

Beware the barrenness of a busy life.

Every pleasure or pain has a sort of rivet with which it fastens the soul to the body and pins it down and makes it corporeal, accepting as true whatever the body certifies.

I am very conscious that I am not wise at all.

Living well and beautifully and justly are all one thing.

I was afraid that by observing objects with my eyes and trying to comprehend them with each of my other senses I might blind my soul altogether.

Are you not ashamed of your eagerness to possess as much wealth, reputation, and honors as possible, while you do not care for nor give thought to wisdom or truth, or the best possible state of your soul?