Civilization is a movement and not a condition, a voyage and not a harbor.

America is a large, friendly dog in a very small room. Every time it wags its tail, it knocks over a chair.

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.

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.

We have been God-like in our planned breeding of our domesticated plants and animals, but we have been rabbit-like in our unplanned breeding of ourselves.

Our western science is a child of moral virtues; and it must now become the father of further moral virtues if its extraordinary material triumphs in our time are not to bring human history to an abrupt, unpleasant and discreditable end.