A fair exterior is a silent recommendation.

Let thy speech be short, comprehending much in few words

Never miss a good chance to shut up.

Words are more treacherous and powerful than we think.

With reasonable men, I will reason; with humane men I will plead; but to tyrants I will give no quarters, nor waste arguments where they will certainly be lost.

As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.

We can never be sure that the opinion we are endeavoring to stifle is a false opinion; and if we were sure, stifling it would be an evil still.

No problem is so deep that it cannot be overcome, given the will of all parties, through discussion and negotiation rather than force and violence.