The physical organization, its decay, the indestructibility of matter, the law of the conservation of energy, evolution, were the words which usurped the place of his old belief. These words and the ideas associated with them were very well for intellectual purposes. But for life they yielded nothing, and Levin felt suddenly like a man who has changed his warm fur cloak for a muslin garment, and going for the first time into the frost is immediately convinced, not by reason, but by his whole nature that he is as good as naked.