I have wrought my simple plan If I give one hour of joy To the boy who’s half a man, Or the man who’s half a boy.

Should I ever marry, Watson, I should hope to inspire my wife with some feeling which would prevent her from being walked off by a housekeeper when my corpse was lying within a few yards of her.

While the individual man is an insoluble puzzle, in the aggregate he becomes a mathematical certainty. You can, for example, never foretell what any one man will be up to, but you can say with precision what an average number will be up to. Individuals vary, but percentages remain constant. So says the statistician.

The chief proof of man's real greatness lies in his perception of his own smallness.

It is quite a three pipe problem, and I beg that you won't speak to me for fifty minutes.

Streams may spring from one source, and yet some be clear and some be foul.

You cannot see the lettuce and the dressing without suspecting a salad.