I was not, I was, I am not, I care not. (Non fui, fui, non sum, non curo)
Is he able, but not willing? Then he is malevolent.
The noble soul occupies itself with wisdom and friendship.
If thou wilt make a man happy, add not unto his riches but take away from his desires.
Neither one should hesitate about dedicating oneself to philosophy when young, nor should get tired of doing it when one's old, because no one is ever too young or too old to reach one's soul's healthy.
Man was not intended by nature to live in communities and be civilized.