The challenge is not just to give people money but to understand how they make decisions under constraints.

I think that the most important thing in life is to be happy and to make other people happy.

To photograph is to appropriate the thing photographed.

Mathematics is the music of reason.

精神科学不想推翻自然科学的结果，而是要完善它们。

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