" Tulips, I thought, staring at the jumble of letters before me. Had the ancient Greeks known them under a different name, if they’d had tulips at all? The letter psi, in Greek, is shaped like a tulip. All of a sudden, in the dense alphabet forest of the page, little black tulips began to pop up in a quick, random pattern like falling raindrops. "

― Donna Tartt , The Secret History