There is danger in that modern phrase 'divine discontent'. There is truth in it also, of course; but it is only truth of a special and secondary kind. Much of the quarrel between Christianity and the world has been due to this fact; that there are generally two truths, as it were, at any given moment of revolt or reaction, and the ancient underlying truism which is nevertheless true all the time. It is sometimes worth while to point out that black is not so black as it is painted; but black is still black, and not white. So with the merits of content and discontent. It is true that in certain acute and painful crises of oppression or disgrace, discontent is a duty and shame could call us like a trumpet. But it is not true that man should look at life with an eye of discontent, however high-minded. It is not true that in his primary, naked relation to the world, in his relation to sex, to pain, to comradeship, to the grave or to the weather, man ought to make discontent his ideal; it is black lunacy. Half his poor little hopes of happiness hang on his thinking a small house pretty, a plain wife charming, a lame foot not unbearable, and bad cards not so bad. The voice of the special rebels and prophets, recommending discontent, should, as I have said, sound now and then suddenly, like a trumpet. But the voices of the saints and sages, recommending contentment, should sound unceasingly, like the sea.
G.K. Chesterton, “What is Right with the World” - thanks to Dale Ahlquist