Now, among the heresies that are spoken in this matter is the habit of calling a grey day a "colourless" day. Grey is a colour, and can be a very powerful and pleasing colour.... A grey clouded sky is indeed a canopy between us and the sun; so is a green tree, if it comes to that. But the grey umbrellas differ as much as the green in their style and shape, in their tint and tilt. One day may be grey like steel, and another grey like dove’s plumage. One may seem grey like the deathly frost, and another grey like the smoke of substantial kitchens.

When a person has found something which he prefers to life itself, he for the first time has begun to live.

Physical science is like simple addition: it is either infallible or it is false.

We ought to be interested in that darkest and most real part of a man in which dwell not the vices that he does not display, but the virtues that he cannot.

I have argued with him on almost every subject in the world, and we have always been on opposite sides, without affectation or animosity... It is necessary to disagree with him as much as I do, in order to admire him as I do; and I am proud of him as a foe even more than as a friend.

Whatever else may be said of man, this one thing is clear: He is not what he is capable of being.

Our society is so abnormal that the normal man never dreams of having the normal occupation of looking after his own property. When he chooses a trade, he chooses one of the ten thousand trades that involve looking after other people's property.