But when you are looking on anyone as a friend when you do not trust him as you trust yourself, you are making a grave mistake, and have failed to grasp sufficiently the full force of true friendship.

Where silence is not allowed, what then is permissible?

We are more wicked together than separately. If you are forced to be in a crowd, then most of all you should withdraw into yourself.

Life without literary studies is death.

Philosophy alone makes the mind invincible, and places us out of the reach of fortune, so that all her arrows fall short of us.

Fidelity purchased with money, money can destroy.

Do the best you can . . . enjoy the present . . . rest satisfied with what you have.