CS Lewis On Pride 1

Today I come to that part of Christian morals where they differ most sharply from all other morals. There is one vice of which no man in the world is free; which everyone loathes when he sees it in someone else; and of which hardly any people, except
Christians, ever imagine that they are guilty themselves.

I do not think I have ever heard anyone who was not a Christian accuse himself of this vice.

There is no fault that makes a man more unpopular, and no fault which we are more unconscious of in ourselves. And the more we have it ourselves, the more we dislike it in others.

The vice I am talking of is Pride or Self-Conceit:

According to
Christian teachers, the essential vice, the utmost evil, is Pride.
Unchastity, anger, greed, drunkenness, and all that, are mere fleabites in comparison: it was through Pride that the devil became the devil: Pride leads to every other vice: it is the complete anti-God state of mind.

C.S. Lewis in Mere Christianity