戏剧是缺席的艺术。

The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.

最高境界的文章，能够通达神明，穷尽天地之理，放之四海而皆准，贯通古今而不变。

命名一个对象就是抑制诗歌四分之三的乐趣。

要养活世界，我们必须首先尊重使农业成为可能的自然循环。

Do not put forward anything that you cannot prove by experimentation.

行动和知识不是彼此的障碍。