I desire only to know the truth, and to live as well as I can...And, to the utmost of my power, I exhort all other men to do the same...I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.

I know nothing but the certainty of my own ignorance.

When desire, having rejected reason and overpowered judgment which leads to right, is set in the direction of the pleasure which beauty can inspire . . .

Virtue is the beauty of the soul.

The cure of many diseases remains unknown to the physicians of Hellos (Greece) because they do not study the whole person.

The greatest flood has the soonest ebb; the sorest tempest the most sudden calm; the hottest love the coldest end; and from the deepest desire oftentimes ensues the deadliest hate.

It is better to suffer an injustice than to commit one