From The Mind of the Maker (1941) by Dorothy Sayers:

It is unpleasant to be called sinners, and much nicer to think that we all have hearts of gold – but have we? It is agreeable to suppose that the more scientific knowledge we acquire the happier we shall be – but does it look like it? It is encouraging to feel that progress is making us automatically every day and in every way better and better and better – but does history support that view?

Available at IWP Books.