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It is the duty of the inventor to make his work as useful and as accessible as possible to the public.

Every mathematical problem has a solution; the challenge is finding it.

"Writing is the only thing that, when I do it, I don't feel I should be doing something else."

The only limits that exist are the ones in your mind.

永遠不要低估設計和執行中簡潔的力量。

如果你能坦然面對勝利和災難，對這兩個騙子一視同仁……

Customer satisfaction begins with understanding their unspoken needs and exceeding their expectations.

The only limits we have are the ones we set for ourselves.