Beauty of style and harmony and grace and good rhythm depend on simplicity - I mean the true simplicity of a rightly and nobly ordered mind and character, not that other simplicity which is only a euphemism for folly.

You cannot go into the same water twice.

How can you prove whether at this moment we are sleeping, and all our thoughts are a dream; or whether we are awake, and talking to one another in the waking state?

Knowledge becomes evil if the aim be not virtuous.

The form of law which I propose would be as follows: In a state which is desirous of being saved from the greatest of all plagues-not faction, but rather distraction-there should exist among the citizens neither extreme poverty nor, again, excessive wealth, for both are productive of great evil . . . Now the legislator should determine what is to be the limit of poverty or of wealth.

Self conquest is the greatest of victories.

No evil can happen to a good man either in life or after death.