The Devil is a spiritual lunatic, but, like many lunatics, he is extremely plausible and cunning.

He was so crooked, you could have used his spine for a safety-pin.

The education that we have so far succeeded in giving to the bulk of our citizens has produced a generation of mental slatterns.

It is not the business of the church to adapt Christ to men, but men to Christ.

It seems to me quite disastrous that the idea should have got about that Christianity is an other-worldly, unreal, idealistic kind of religion that suggests that if we are good we shall be happy. On the contrary, it is fiercely and even harshly realistic, insisting that there are certain eternal achievements that make even happiness look like trash.

you can give it a long name if you like, but I'm an old-fashioned woman and I call it mother-wit, and it's so rare for a man to have it that if he does you write a book about him and call him Sherlock Holmes.

The only ethical principle which has made science possible is that the truth shall be told all the time. If we do not penalize false statements made in error, we open up the way for false statements by intention. And a false statement of fact, made deliberately, is the most serious crime a scientist can commit.