The true spirit of delight...is to be found in mathematics as surely as in poetry.

There is little of the true philosophic spirit in Aquinas. He does not, like the Platonic Socrates, set out to follow wherever the argument may lead.

Fervent religious believers sacrifice pleasures of the body, but instead enjoy pleasures of the mind, including the joy of knowing that those men who didn't follow their religion would be tortured for eternity.

Only six need be attempted.

In our complex world, there cannot be fruitful initiative without government, but unfortunately there can be government without initiative.

Philosophy, if it cannot answer so many questions as we could wish, has at least the power of asking questions which increase the interest of the world, and show the strangeness and wonder lying just below the surface even in the commonest things of daily life.

Philosophy, from the earliest times, has made greater claims, and achieved fewer results, than any other branch of learning.