G.K. Chesterton on Unseemly TruthsOrthodoxy (John Lane Company: 1909), p. 291.
This, therefore, is, in conclusion, my reason for accepting the religion and not merely the scattered and secular truths out of the religion. I do it because the thing has not merely told this truth or that truth, but has revealed itself as a truth-telling thing. All other philosophies say the things that plainly seem to be true; only this philosophy has again and again said the thing that does not seem to be true, but is true. Alone of all creeds it is convincing where it is not attractive; it turns out to be right, like my father in the garden. Theosophists for instance will preach an obviously attractive idea like re-incarnation; but if we wait for its logical results, they are spiritual superciliousness and the cruelty of caste. For if a man is a beggar by his own pre-natal sins, people will tend to despise the beggar. But Christianity preaches an obviously unattractive idea, such as original sin; but when we wait for its results, they are pathos and brotherhood, and a thunder of laughter and pity; for only with original sin we can at once pity the beggar and distrust the king.