Plato

The most important part of education is right training in the nursery.

The soul takes flight to the world that is invisible but eternal and there she is at rest, and has escaped from the wanderings and follies of men, and is ever with the gods, as becomes her who is divine.

Democracy... is a charming form of government, full of variety and disorder; and dispensing a sort of equality to equals and unequals alike.

The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily.

Excess of liberty, whether in states or individuals, seems only to pass into excess of slavery.

For good people to do nothing is for evil to triumph.

Bodily exercise, when compulsory, does no harm to the body; but knowledge which is acquired under compulsion obtains no hold on the mind.

The greatest mistake in the treatment of diseases is that there are physicians for the body and physicians for the soul, although the two cannot be separated.

He who is not a good servant will not be a good master.

The most effective kind of education is that a child should play amongst lovely things.

Dictatorship naturally arises out of democracy, and the most aggravated form of tyranny and slavery out of the most extreme liberty.

The true lover of learning, then, must from his earliest youth, as far as possible, be devoted to truth.

A good decision is based on knowledge and not on numbers.

The soul of man is immortal and imperishable.

Reality is created by the mind, we can change our reality by changing our mind.

The wise man will want to be ever with him who is better than himself.

States are as men are; they grow out of human characters.

The heaviest penalty for declining to rule is to be ruled by someone inferior to yourself.

Musical innovation is full of danger to the State, for when modes of music change, the fundamental laws of the State always change with them.

If women are expected to do the same work as men, we must teach them the same things.