Nikos Kazantzakis said this quote

Tell me what you do with the food you eat, and I'll tell you who you are. Some turn their food into fat and manure, some into work and good humor, and others, I'm told, into God. So there must be three sorts of men. I'm not one of the worst, boss, nor yet one of the best. I'm somewhere in between the two. What I eat I turn into work and good humor. That's not too bad, after all!'He looked at me wickedly and started laughing.'As for you, boss,' he said, 'I think you do your level best to turn what you eat into God. But you can't quite manage it, and that torments you. The same thing's happening to you as happened to the crow.''What happened to the crow, Zorba?''Well, you see, he used to walk respectably, properly - well, like a crow. But one day he got it into his head to try and strut about like a pigeon. And from that time on the poor fellow couldn't for the life of him recall his own way of walking. He was all mixed up, don't you see? He just hobbled about.