The theory that thought is merely a movement in the brain is, in my opinion, nonsense; for if so, that theory itself would be merely a movement, an event among atoms, which may have speed and direction but of which it would be meaningless to use the words 'true' or 'false'.

Youth and age touch only the surface of our lives.

The fundamental laws are in the long run merely statements that every event is itself and not some different event.

It's always winter but it's never Christmas.

I was driven to Whipsnade one sunny morning. When we set out I did not believe that Jesus Christ is the son of God, and when we reached the zoo I did. Yet I had not exactly spent the journey in thought. Nor in great emotion. “Emotional” is perhaps the last word we can apply to some of the most important events. It was more like when a man, after a long sleep, still lying motionless in bed, becomes aware that he is now awake.

Provided that any of those neighbours sing out of tune or have boots that squeak, or double chins, or odd clothes, the patient will quite easily believe that their religion must therefore be somehow ridiculous.

After an error you need not only to remove the causes but also to correct the error itself: after a sin you must not only, if possible, remove the temptation, you must also go back and repent the sin itself. In each case an 'undoing' is required.