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The only way to learn mathematics is to do mathematics.

讓兒童參與工作，能增強他們對生活環境的責任感。

善良是一種聾子能聽見、盲人能看見的語言。

"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful."

The best programs are written so that computing machines can perform them quickly and so that human beings can understand them clearly. A programmer is ideally an essayist who works with traditional aesthetic and literary forms as well as mathematical concepts, to communicate the way that an algorithm works and to convince a reader that the results will be correct.

靠正道謀生的人都盡心盡力去做些有益于他人和世界的事，這使得世人都離不開他，老天爺自然也離不得他。如此做法才是一個人安身立命的最好途徑。