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.

The essence of genius is to know what to overlook.

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

We [may] answer the question: "Why is snow white?" by saying, "For the same reason that soap-suds or whipped eggs are white"-in other words, instead of giving the reason for a fact, we give another example of the same fact. This offering a similar instance, instead of a reason, has often been criticised as one of the forms of logical depravity in men. But manifestly it is not a perverse act of thought, but only an incomplete one. Furnishing parallel cases is the necessary first step towards abstracting the reason imbedded in them all.

It is wrong always, everywhere, and for everyone, to believe anything upon insufficient evidence.

We are proud of a human nature that could be so passionately extreme, but we shrink from advising others to follow the example.

The amount of psychology which is necessary to all teachers need not be very great.