Plato

We are twice armed if we fight with faith.

Attention to health is life's greatest hindrance.

The first and greatest victory is to conquer yourself to be conquered by yourself is of all things most shameful and vile.

Better a little which is well done, than a great deal imperfectly.

Truth is the beginning of every good to the gods, and of every good to man.

They certainly give very strange names to diseases.

Injustice is censured because the censures are afraid of suffering, and not from any fear which they have of doing injustice.

Knowledge which is acquired under compulsion obtains no hold on the mind.

Knowledge without justice ought to be called cunning rather than wisdom.

Knowledge is true opinion.

Human behavior flows from three main sources: desire, emotion, and knowledge.

Opinion is the medium between knowledge and ignorance.

The blame is his who chooses: God is blameless.

There will be no end to the troubles of states, or of humanity itself, till philosophers become kings in this world, or till those we now call kings and rulers really and truly become philosophers, and political power and philosophy thus come into the same hands.

Twice and thrice over, as they say, good is it to repeat and review what is good.

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

Nothing can be more absurd than the practice that prevails in our country of men and women not following the same pursuits with all their strengths and with one mind, for thus, the state instead of being whole is reduced to half.

And what, Socrates, is the food of the soul? Surely, I said, knowledge is the food of the soul.