一位智者曾说：在你说话之前，让你的话经过三道门。在第一道门，问自己，“这是真的吗？”在第二道门，问，“这是必要的吗？”在第三道门，问，“这是善意的吗？”

质量从来不是偶然的；它始终是智慧努力的结果。

Before a dream is realized, the Soul of the World tests everything that was learned along the way. It does this not because it is evil, but so that we can, in addition to realizing our dreams, master the lessons we've learned as we've moved toward that dream. That's the point at which most people give up. It's the point at which, as we say in the language of the desert, one 'dies of thirst just when the palm trees have appeared on the horizon.'

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?

The weight of evidence for an extraordinary claim must be proportioned to its strangeness.

高分子化学的引入开辟了一个新的材料世界，其重要性可与发现新大陆相媲美。