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Millions saw the apple fall, but Newton asked why.

——在廣州全國青年聯合會演說，1923年10月21日

Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

Be the change you wish to see.

Efficiency in farming is not about doing more with less, but about doing better with what we have.

Follow your heart, and use it to lead your life. Anything else is secondary.