Fortunately, however, birds don't understand pep talks. Not even St. Francis'. Just imagine, he went on, preaching sermons to perfectly good thrushes and goldfinches and chiff-chaffs! What presumption! Why couldn't he have kept his mouth shut and let the birds preach to him?

The more powerful and original a mind, the more it will incline towards the religion of solitude.

Real progress is progress in charity, all other advances being secondary thereto.

One believes things because one has been conditioned to believe them.

Fortunately, however, birds don't understand pep talks. Not even St. Francis'. Just imagine, he went on, preaching sermons to perfectly good thrushes and goldfinches and chiff-chaffs! What presumption! Why couldn't he have kept his mouth shut and let the birds preach to him?

The man who comes back through the Door in the Wall will never be quite the same as the man who went out. He will be wiser but less sure, happier but less self-satisfied, humbler in acknowledging his ignorance yet better equipped to understand the relationship of words to things, of systematic reasoning to the unfathomable mystery which it tries, forever vainly, to comprehend

Procrustes in modern dress, the nuclear scientist will prepare the bed on which mankind must lie; and if mankind doesn’t fit—well, that will be just too bad for mankind. There will have to be some stretching and a bit of amputation—the same sort of stretching and amputations as have been going on ever since applied science really got going into its stride, only this time they will be a good deal more drastic than in the past. These far from painless operations will be directed by highly centralized totalitarian governments.