We need a science to save us from science.

The use of force stands in need of control by a public neutral authority, in the interests of liberty no less than of justice. Within a nation, this public authority will naturally be the state; in relations between nations, if the present anarchy is to cease, it will have to be some international parliament.

Modern technique has made it possible for leisure, within limits, to be not the prerogative of small privileged classes, but a right evenly distributed throughout the community. The morality of work is the morality of slaves, and the modern world has no need of slavery.

Only six need be attempted.

To discover a system for the avoidance of war is a vital need of our civilisation.

When all experts agree, you need to watch out.

I used, when I was younger, to take my holidays walking. I would cover 25 miles a day, and when the evening came I had no need of anything to keep me from boredom, since the delight of sitting amply sufficed.

The morality of work is the morality of slaves, and the modern world has no need of slavery.

Americans need rest, but do not know it.