Skepticism: the mark and even the pose of the educated mind.
Religion is to mysticism what popularization is to science.
What is the meaning of the togetherness of the perceiving mind, in that peculiar modification of perceiving which makes it perceive not a star but a tree, and the tree itself, is a problem for philosophy.
Such being the nature of mental life, the business of psychology is primarily to describe in detail the various forms which attention or conation assumes upon the different levels of that life.
It seems that laughter needs an echo.
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
In reality, the past is preserved by itself automatically.
Without troublesome work, no one can have any concrete, full idea of what pure mathematical research is like or of the profusion of insights that can be obtained from it.
Psychology is the science of the act of experiencing, and deals with the whole system of such acts as they make up mental life.
We would be in a nasty position indeed if empirical science were the only kind of science possible.