When you swear, swear seriously and solemnly, but at the same time with a smile, for a smile is the twin sister of seriousness.

For a poet is an airy thing, winged and holy, and he is not able to make poetry until he becomes inspired and goes out of his mind and his intellect is no longer in him.

That is very high praise, which is given you by faithful witness.

For this feeling of wonder shows that you are a philosopher, since wonder is the only beginning of philosophy.

Pleasure is the greatest incentive to evil.

For the introduction of a new kind of music must be shunned as imperiling the whole state; since styles of music are never disturbed without affecting the most important political institutions.

Let us affirm what seems to be the truth, that, whether one is or is not, one and the others in relation to themselves and one another, all of them, in every way, are and are not, and appear to be and appear not to be.