《吕氏春秋·论·似顺论》
而今射箭的人，仔细观察毫毛就会看不见墙壁；画画的人，仔细观察毛发就会忽略容貌。这说明要弄清根本。
今夫射者仪毫而失墙，画者仪发而易貌，言审本也。
Nowadays, an arrow shooter, if he concentrates on details, will not be able to see the barricade; a painter, if he concentrates on a hair, will miss the complete picture. This means to make the fundamentals clear.