History teaches us virtue, but nature never ceases to teachh us vice.
To be original you must listen to the voice of your heart rather than the clamor of the world - and have the courage to teach publicly what you have learned. The source of all genius is sincerity; men would be wiser if they were more moral.
Because I was born a slave, I love liberty more than you.
Nought endures but change.
Getting rid of a delusion makes us wiser than getting hold of a truth.
Losing an illusion makes you wiser than finding a truth.