We shall have to share out the fruits of technology among the whole of mankind. The notion that the direct and immediate producers of the fruits of technology have a proprietary right to these fruits will have to be forgotten. After all, who is the producer? Man is a social animal, and the immediate producer has been helped to produce by the whole structure of society, beginning with his own education.

It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.

Anxiety and conscience are a powerful pair of dynamos. Between them, they have ensured that I shall work hard, but they cannot ensure that one shall work at anything worthwhile.

A city that outdistances man's walking powers is a trap for man.

The absolute value of love makes life worth while, and so makes Man's strange and difficult situation acceptable. Love cannot save life from death; but it can fulfill life's purpose.

Apathy can be overcome by enthusiasm.

The human race's prospects of survival were considerably better when we were defenceless against tigers than they are today when we have become defenceless against ourselves.