No trace of slavery ought to mix with the studies of the freeborn man. No study, pursued under compulsion, remains rooted in the memory.

Hardly any human being is capable of pursuing two professions or two arts rightly.

The philosopher is in love with truth, that is, not with the changing world of sensation, which is the object of opinion, but with the unchanging reality which is the object of knowledge.

Then the lover, who is true and no counterfeit, must of necessity be loved by his love.

Love is the joy of the good, the wonder of the wise, the amazement of the gods; desired by those who have no part in him, and precious to those who have the better part in him.

You cannot go into the same water twice.

No attempt should be made to cure the body without the soul