One way to hold this word: a razor's edge held against a sheet of paper. Nobody presses. The blade only moves, and the paper is already in two pieces, with no sound and no torn fibres. Every use of the word is measuring something against that edge — no effort, no mess, an exact line.
可以想成一片剃刀的刃口貼著一張紙。沒有人用力壓。刀只是滑過去，紙就已經分成兩半。沒有聲音，邊緣也不毛。這個字的每一種用法，都是拿東西去跟那個刃口比。比的是三件事：不費力、不拖泥帶水、留下一條準確的線。看懂這三件事，牙齒、頭腦和西裝為什麼能用同一個字，就說得通了。
登入就可以看每一支怎麼連回核心畫面。