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The very definition of the real becomes: that of which it is possible to give an equivalent reproduction.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.

Every small step toward sustainability compounds into a wave of global impact.

過去を変えることはできないが、未來は変えられる。

"Causal inference requires careful thought about the assumptions underlying your analysis."

你的星星無法閃爍是因為我。