Nobody is qualified to become a statesman who is entirely ignorant of the problem of wheat.

One ought not to return injustice, nor do evil to anybody in the world, no matter what one may have suffered from them.

The only place where success comes before work is in the dictionary.There is only one good, knowledge, and one evil, ignorance.

The only thing I know is that I know nothing

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.

True wisdom lies in one's confession about the limits of one's knowledge.

It is not difficult to avoid death. It is much more difficult to avoid wickedness, for it runs faster than death.