Those whose hearts are fixed on Reality itself deserve the title of Philosophers.

Knowledge is true opinion.

When a person supposes that he knows, and does not know; this appears to be the great source of all the errors of the intellect.

Let brother help brother.

Love is born into every human being; it calls back the halves of our original nature together; it tries to make one out of two and heal the wound of human nature.

The true musician is attuned to a fairer harmony than that of the lyre... for he truly has in his own life a harmony of words and deeds arranged in the Dorian mode. Such a one makes me joyous with the sound of his voice, so eager am I in drinking in his words.

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