There is a higher court than courts of justice and that is the court of conscience. It supersedes all other courts.

To jaw-jaw is always better than to war-war.

I think there's every reason this 21st century will be much happier.

We must, indeed, all hang together or, most assuredly, we shall all hang separately. 

In constructing the plot and working it out with the proper diction, the poet should place the scene, as far as possible, before his eyes. In this way, seeing everything with the utmost vividness, as if he were a spectator of the action, he will discover what is in keeping with it, and be most unlikely to overlook inconsistencies.

All the political movements of our country that have hitherto played any important role in our modern history had been lacking in the ideal at the achievement of which they aimed. Revolutionary movement is no exception.

I feel exhausted if I teach too long.

I am fond of pigs. Dogs look up to us. Cats look down on us. Pigs treat us as equals. 

Facts are many, but the truth is one.

To give pleasure to a single heart by a single act is better than a thousand heads bowing in prayer.

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

Those who own much have much to fear.