译文：每天做的事，都要问心无愧才行，光阴容易逝去，希望能把这个信念坚持到老年。赏析：我们一生做事都要善于反省，做到防患于未然，避免发生更严重的错误。凡事粗心大意，鲁莽草率，必将带来祸害。

最好的设计源于对自然法则的理解。

Sustainability isn't a cost; it's an investment in our collective future.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

写作的行为是一种记忆的行为。

我们需要设计考虑到人类心理的政策，而不仅仅是经济理论。