things which in any degree falls short of the whole truth is not fair measure; for nothing imperfect is the measure of anything, although persons are too apt to be contented and think that they need search no further.

Not an uncommon case when people are indolent.

Yes, I said; and there cannot be any worse fault in a guardian of the State and of the laws.

True.

The guardian then, I said, must be required to take the longer circuit, and toil at learning as well as at gymnastics, or he will never reach the highest knowledge of all which, as we were just now saying, is his proper calling.

What, he said, is there a knowledge still higher than this — higher than justice and the other virtues?