The one who thinks over his experiences most, and weaves them into systematic relations with each other, will be the one with the best memory.

We have lost the power even of imagining what the ancient idealization of poverty could have meant: the liberation from material attachments, the unbribed soul, the manlier indifference, the paying our way by what we are and not by what we have, the right to fling away our life at any moment irresponsibly - the more athletic trim, in short, the moral fighting shape.

Human beings are born into this little span of life of which the best thing is its friendships and intimacies … and yet they leave their friendships and intimacies with no cultivation, to grow as they will by the roadside, expecting them to "keep" by force of mere inertia.

To be fertile in hypotheses is the first perquisite of creativity and to be willing to throw them away the moment experience contradicts them is the next.

Truth is something that happens to an idea.

The war against war is going to be no holiday excursion or camping party.

Effort is a measure of a Man.