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.

We may not be able to get certainty, but we can get probability, and half a loaf is better than no bread.

Above all, do not attempt to use science (I mean, the real sciences) as a defence against Christianity. They will positively encourage him to think about realities he can’t touch and see.

I have no duty to be anyone's Friend and no man in the world has a duty to be mine. No claims, no shadow of necessity. Friendship is unnecessary, like philosophy, like art, like the universe itself (for God did not need to create). It has no survival value; rather it is one of those things which give value to survival.

Christ did not die for man because they were intrinsically worth dying for, but because he is intrinsically love, and therefore loves infinitely.

Your book bill ought to be your biggest extravagance.

But probably every age gets, within certain limits, the science it deserves.