Since the whole city has one end, it is manifest that education should be one and the same for all, and that it should be public, and not private - not as at present, when every one looks after his own children separately, and gives them separate instruction of the sort which he thinks best; the training in things which are of common interest should be the same for all. Neither must we suppose that any one of the citizens belongs to himself, for they all belong to the state, and are each of them a part of the state, and the care of each part is inseparable from the care of the whole.

Republics decline into democracies and democracies degenerate into despotisms.

For nature by the same cause, provided it remain in the same condition, always produces the same effect, so that either coming-to-be or passing-away will always result.

A gentleman is not disturbed by anything

A true disciple shows his appreciation by reaching further than his teacher.

Of mankind in general, the parts are greater than the whole.

Praise invariably implies a reference to a higher standard.