分别时南飞的鸿雁刚刚北去，今日北归的大雁又已南飞

A company's true value is measured by its impact on people and the planet.

Efficiency without sustainability is just short-term profit disguised as progress.

乳制品农业不仅仅是一门生意；它是一种我们必须保护和培育的生活方式。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The pursuit of mathematical knowledge is a never-ending adventure, filled with challenges, surprises, and the satisfaction of solving the unsolvable.

我不认为有极限。