When a man sees a dying animal, horror comes over him: that which he himself is, his essence, is obviously being annihilated before his eyes--is ceasing to be. But when the dying one is a person, and a beloved person, then, besides a sense of horror at the annihilation of life, there is a feeling of severance and a spiritual wound which, like a physical wound, sometimes kills and sometimes heals, but always hurts and fears any external, irritating touch.
Leo TolstoyHere's my advice to you: don't marry until you can tell yourself that you've done all you could, and until you've stopped loving the women you've chosen, until you see her clearly, otherwise you'll be cruelly and irremediably mistaken. Marry when you're old and good for nothing...Otherwise all that's good and lofty in you will be lost.
Leo TolstoyWhen Levin thought what he was and what he was living for, he could find no answer to the questions and was reduced to despair; but when he left off questioning himself about it, it seemed as though he knew both what he was and what he was living for, acting and living resolutely and without hesitation.
Leo Tolstoy