Wicked men obey out of fear. good men, out of love

There is more evidence to prove that saltness [of the sea] is due to the admixture of some substance, besides that which we have adduced. Make a vessel of wax and put it in the sea, fastening its mouth in such a way as to prevent any water getting in. Then the water that percolates through the wax sides of the vessel is sweet, the earthy stuff, the admixture of which makes the water salt, being separated off as it were by a filter.

This world is inescapably linked to the motions of the worlds above. All power in this world is ruled by these options.

It is our choice of good or evil that determines our character, not our opinion about good or evil.

If you prove the cause, you at once prove the effect; and conversely nothing can exist without its cause.

Music has the power of producing a certain effect on the moral character of the soul, and if it has the power to do this, it is clear that the young must be directed to music and must be educated in it.

When a draco has eaten much fruit, it seeks the juice of the bitter lettuce; it has been seen to do this.