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The hardest single part of building a software system is deciding precisely what to build.

我不需要大聲才能被聽到。

If you believe that every life has equal value, it's revolting to learn that some lives are seen as worth saving and others are not. We said to ourselves: "This can't be true. But if it is true, it deserves to be the priority of our giving."

I'm not afraid of risks, I'm afraid of regrets.

生命問題的解決在于問題的消失。

我不去想過去。我專注于現在和未來。