A poem must be an event, not a record of an event.

Any change, even a change for the better, is always accompanied by drawbacks and discomforts.

数学中的每个问题都是一个等待解决的谜题，而乐趣就在于解决的过程。

The problem is not that there are problems. The problem is expecting otherwise and thinking that having problems is a problem.

如果我们想应对全球粮食安全的挑战，跨行业和跨国界的合作至关重要。