Nobody remembers twenty figures. Everybody remembers six shapes. Learn the shape, and the sentence for any figure inside it is already written: what it says, and what it cannot say. 沒有人記得住二十張圖，但每個人都記得住六個形狀。記住形狀，裡面任何一張圖的句子就已經寫好了：它說了什麼，以及它不能說什麼。