Nothing is easier than self-deceit.

Since we are not yet fully comfortable with the idea that people from the next village are as human as ourselves, it is presumptuous in the extreme to suppose we could ever look at sociable, tool-making creatures who are from other evolutionary paths and see not beasts, but brothers, not rivals, but fellow pilgrims journeying to the shrine of intelligence...The difference... is not in the creature judged, but in the creature judging.

The man who has received a benefit ought always to remember it, but he who has granted it ought to forget the fact at once.

You cannot have a proud and chivalrous spirit if your conduct is mean and paltry; for whatever a man's actions are, such must be his spirit.

It is not possible to found a lasting power upon injustice, perjury, and treachery. These may, perhaps, succeed for once, and borrow for awhile, from hope, a gay and flourishing appearance. But time betrays their weakness, and they fall into ruin of themselves. For, as in structures of every kind, the lower parts should have the greatest firmness--so the grounds and principles of actions should be just and true.

One believes in what one wants to believe in.

Nothing is so easy as to deceive one's self; for what we wish, that we readily believe; but such expectations are often inconsistent with the real state of things.