Our lives are like islands in the sea, or like trees in the forest. The maple and the pine may whisper to each other with their leaves ... But the trees also commingle their roots in the darkness underground, and the islands also hang together through the ocean's bottom.

Whilst part of what we perceive comes through our senses from the object before us, another part (and it may be the larger part) always comes out of our own mind.

Emotional occasions, especially violent ones, are extremely potent in precipitating mental rearrangements. The sudden and explosive ways in which love, jealousy, guilt, fear, remorse, or anger can seize upon one are known to everybody. . . . And emotions that come in this explosive way seldom leave things as they found them.

To study the abnormal is the best way of understanding the normal.

Truth is something that happens to an idea.

Once you accept an idea, it's an idea whose time has come.

Most men's friendships are too inarticulate.