If religion does not make us better people, it will make us very much worse. And of all the bad men who have lived, the religious "bad man" is the worst of all.

In reading Chesterton, as in reading MacDonald, I did not know what I was letting myself in for. A young man who wishes to remain a sound Atheist cannot be too careful of his reading. There are traps everywhere — "Bibles laid open, millions of surprises," as Herbert says, "fine nets and stratagems." God is, if I may say it, very unscrupulous.

Mental pain is less dramatic than physical pain, but it is more common and also more hard to bear. The frequent attempt to conceal mental pain increases the burden: it is easier to say “My tooth is aching” than to say “My heart is broken.

The humblest praise most, while cranks & malcontents praise least. Praise almost seems to be inner health made audible

Some have paid me an undeserved compliment by supposing that my Letters were the ripe fruit of many years' study in moral and ascetic theology. They forgot that there is an equally reliable, though less creditable, way of learning how temptation works.

When we are such as He can love without impediment, we shall in fact be happy.

The promise, made when I am in love and because I am in love, to be true to the beloved as long as I live, commits me to being true even if I cease to be in love. A promise must be about things that I can do, about actions: no one can promise to go on feeling in a certain way. He might as well promise to never have a headache or always to feel hungry.