The Moving Finger writes; and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it.
出自唐代诗人韦应物《寄李儋元锡》,梁羽生在《大唐游侠传》中引用
The greatest experiments start with a simple question.