The mind is the soul's eye, not its source of power. That lies in the heart, in other words, in the passions.
A liar is a man who does now know how to deceive, a flatterer one who only deceives fools: he who knows how to make skilful use of the truth, and understands its eloquence, can alone pride himself in cleverness.
Hatred and dishonesty generally arises from fear of being deceived.
All men are born truthful and die liars.