There are many ways of being wrong, but only one way of being right. - Susan Stebbing

...we easily fall into the habit of accepting compressed statements which save us from the trouble of thinking. Thus arises what I shall call ‘Potted Thinking’.

We must face the unfortunate fact that we are moved to the acceptance of beliefs by factors that are wholly irrelevant to their truth.

Perceiving involves more than being sensibly aware of something present to the senses; it involves the activity of perceiving. This is the activity of a person, and in perceiving, the whole person is involved, not merely one or other of his sense organs.