The only limit to our realization of tomorrow is our doubts of today.

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 art of disputation is the art of making the worse appear the better reason.

君子不救人，不是没有能力，而是不愿意去做。