It is the greatest good for an individual to discuss virtue (aka areté) every day...for the unexamined life is not worth living.

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?

Do not go through life like leaf blown from here to there believing whatever you are told.

I must first know myself, as the Delphian inscription says; to be curious about that which is not my concern, while I am still in ignorance of my own self, would be ridiculous. And therefore I bid farewell to all this; the common opinion is enough for me. For, as I was saying, I want to know not about this, but about myself: am I a monster more complicated and swollen with passion than the serpent Typho, or a creature of a gentler and simpler sort, to whom Nature has given a diviner and lowlier destiny?

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

How many things I can do without!

And I say let a man be of good cheer about his soul. When the soul has been arrayed in her own proper jewels - temperance and justice, and courage, and nobility and truth - she is ready to go on her journey when the hour comes.