A lone maple leaf resting on sand Have you ever been out for a late autumn walk in the closing part of the afternoon, and suddenly looked up to realize that the leaves have practically all gone? And the sun has set and the day gone before you knew it, and with that a cold wind blows across the landscape? That's retirement.

Chess is one long regret.

Astronomy teaches the correct use of the sun and the planets.

I owe a lot to my teachers and mean to pay them back some day.

Most people can tire of a lecture in fifteen minutes, clever people can do it in five, and sensible people don't go to lectures at all.

On the same bill and on the same side of it there should not be two charges for the same thing

Electricity is of two kinds, positive and negative. The difference is, I presume, that one comes a little more expensive, but is more durable; the other is a cheaper thing, but the moths get into it.