There is, I assure you, a medical art for the soul. It is philosophy, whose aid need not be sought, as in bodily diseases, from outside ourselves. We… - Cicero

Philosophy is certainly the medicine of the soul. Its aid is to be sought not from without, as in diseases of the body; and we must labour with all our resources and with all our strength to cure ourselves.

To be rather than to seem.

We know, that of all living beings man is the best formed, and, as the gods belong to this number, they must have a human form. ... I do not mean to say that the gods have body and blood in them; but I say that they seem as if they had bodies with blood in them. . . , Epicurus, for whom hidden things were as tangible as if he had touched them with his finger, teaches us that gods are not generally visible, but that they are intelligible; that they are not bodies having a certain solidity . . . but that we can recognize them by their passing images; that as there are atoms enough in the infinite space to produce such images, these are produced before us . . . and make us realize what are these happy, immortal beings.

for it is not having insufficient knowledge, but persisting a long time in insufficient knowledge that is shameful; since the one is assumed to be a disease common to all, but the other is assumed to be a flaw to an individual.