" I did not know which of them it was, and did not care, but Mother knew it was Janet. We watched them walk over the bridge. “ Do you wish I had been a girl? ” I asked. “ Davie! ” she cried, turning and looking at me. “ What a thing to say! What a ridiculous thing! ” “ You seem to like playing with them,” I said uncomfortably. “ Oh Davie, you mustn’t be jealous! There’s more misery caused by jealousy than anything else in the world. Jealousy is wicked and foolish too. It’s like a disease,” said Mother earnestly. “ It’s like an awful creeping disease. It’s like ivy strangling a tree. "

― D.E. Stevenson , Five Windows