The most credible empirical research often comes from studies that have a clear and transparent design, where the assumptions are laid out for everyone to see.

The world is a book, and those who do not travel read only one page.

依靠聪明、平衡的人类几个世纪以来所依赖的普通美德。常识、节俭、现实的期望、耐心和毅力。