The proper, wise balancing of one's whole life may depend upon the feasibility of a cup of tea at an unusual hour.

No mind, however loving, could bear to see plainly into all the recess of another mind.

One of the chief things which my typical man has to learn is that the mental faculties are capable of a continuous hard activity; they do not tire like an arm or a leg. All they want is change - not rest, except in sleep.

Much ingenuity with a little money is vastly more profitable and amusing than much money without ingenuity.

The people who live in the past must yield to the people who live in the future. Otherwise the world would begin to turn the other way round.

Concentrate on something useful. Having decided to achieve a task, achieve it at all costs.

You are not in charge of the universe; you are in charge of yourself.