Solitude and company may be allowed to take their turns: the one creates in us the love of mankind, the other that of ourselves; solitude relieves us when we are sick of company, and conversation when we are weary of being alone, so that the one cures the other. There is no man so miserable as he that is at a loss how to use his time
Seneca the YoungerTrue friends are the whole world to one another; and he that is a friend to himself is also a friend to mankind. Even in my studies the greatest delight I take is of imparting it to others; for there is no relish to me in the possessing of anything without a partner.
Seneca the YoungerNow we are not merely to stick knowledge on to the soul: we must incorporate it into her; the soul should not be sprinkled with knowledge but steeped in it.
Seneca the Younger