Letters 9.3

There is this difference between ourselves and the other school: our ideal wise man feels his troubles, but overcomes them; their wise man does not even feel them. But we and they alike hold this idea,—that the wise man is self-sufficient. Nevertheless, he desires friends, neighbours, and associates, no matter how much he is sufficient unto himself.

Seneca, Letters to Lucilius 9.3, translated by Richard Mott Gummere