Thus we have now for many centuries triumphed over nature to the extent of making certain secondary characteristics of the male (such as the beard) disagreeable to nearly all the females—and there is more in that than you might suppose.

To make Christianity a private affair while banishing all privacy is to relegate it to the rainbow's end or the Greek Calends.

This is my endlessly recurrent temptation: to go down to that Sea, and there neither dive nor swim nor float, but only dabble and splash, careful not to get out of my depth and holding on to the lifeline which connects me with my things temporal.

They have chosen cunning instead of belief. Their prison is only in their minds, yet they are in that prison; and so afraid of being taken in that they cannot be taken out.

In a civilization like ours, I feel that everyone has to come to terms with the claims of Jesus Christ upon his life, or else be guilty of inattention or of evading the question.

Talk to me about the truth of religion and I'll listen gladly. Talk to me about the duty of religion and I'll listen submissively. But don't come talking to me about the consolations of religion or I shall suspect that you don't understand.

All possible knowledge, then, depends on the validity of reasoning...Unless human reasoning is valid no science can be true.