"Sustainability is not a cost, it's an investment in our collective future."

In mathematics, the journey is just as important as the destination.

理性的公共使用是弥合道德与政治之间鸿沟的唯一途径。

You have enemies? Good. That means you've stood up for something, sometime in your life.

Give me a dozen healthy infants, well-formed, and my own specified world to bring them up in and I'll guarantee to take any one at random and train him to become any type of specialist I might select—doctor, lawyer, artist, merchant-chief and, yes, even beggar-man and thief, regardless of his talents, penchants, tendencies, abilities, vocations, and race of his ancestors.

保存就是转变。