Hatred of enemies is easier and more intense than love of friends. But from men who are more anxious to injure opponents than to benefit the world at large no great good is to be expected.

Worry is a form of fear.

In the part of this universe that we know there is great injustice, and often the good suffer, and often the wicked prosper, and one hardly knows which of those is the more annoying.

I found one day in school a boy of medium size ill-treating a smaller boy. I expostulated, but he replied: "The bigs hit me, so I hit the babies; that's fair." In these words he epitomized the history of the human race.

A sense of duty is useful in work but offensive in personal relations. People wish to be liked, not to be endured with patient resignation.

A man is rational in proportion as his intelligence informs and controls his desires.

There is exactly the same degree of possibility and likelihood of the existence of the Christian God as there is of the existence of the Homeric god. I cannot prove that either the Christian god or the Homeric gods do not exist, but I do not think that their existence is an alternative that is sufficiently probable to be worth serious consideration.