A man who should act, for one day, on the supposition that all the people about him were influenced by the religion which they professed would find himself ruined by night.

Supposing a tree fell down, Pooh, when we were underneath it?’ ‘Supposing it didn’t,’ said Pooh after careful thought. Piglet was comforted by this.

But it is just this characteristic of simplicity in the laws of nature hitherto discovered which it would be fallacious to generalize, for it is obvious that simplicity has been a part cause of their discovery, and can, therefore, give no ground for the supposition that other undiscovered laws are equally simple.