One of the strongest natural proofs of the folly of hereditary right in kings is, that nature disapproves it; otherwise she would not so frequently turn it into ridicule by giving mankind an ass in place of a lion

Man must go back to nature for information.

But such is the nature of truth, that all it asks, and all it wants is the liberty of appearing irresistible

I have always strenuously supported the right of every man to his own opinion, however different that opinion might be to mine. He who denies to another this right, makes a slave of himself to his present opinion, because he precludes himself the right of changing it.

Give to every other human being every right that you claim for yourself - that is my doctrine

But such is the irresistable nature of truth, that all it asks, and all it wants is the liberty of appearing.