A man that seeks truth and loves it must be reckoned precious to any human society.

The cause of all human evils is the not being able to apply general principles to special cases.

Difficulty shows what men are. Therefore when a difficulty falls upon you, remember that God, like a trainer of wrestlers, has matched you with a rough young man. Why? So that you may become an Olympic conqueror; but it is not accomplished without sweat.

The soul's impurity consists in bad judgements, and purification consists in producing in it right judgements, and the pure soul is one which has right judgements, for this alone is proof against confusion and pollution in its functions.

You will do the greatest service to the state if you shall raise, not the roofs of the houses, but the souls of the citizens: for it is better that great souls should dwell in small houses rather than for mean slaves to lurk in great houses.

If you seek Truth, you will not seek to gain a victory by every possible means; and when you have found Truth, you need not fear being defeated.

To make anything a habit, do it; to not make it a habit, do not do it; to unmake a habit, do something else in place of it.