跨国合作对于解决全球粮食挑战至关重要。

"Every portrait that is painted with feeling is a portrait of the artist, not of the sitter."

The best stories are those that challenge our perceptions.

I believe that love is a better teacher than the sense of duty， he said， at least for me.

不平等并非不可避免，它是政策选择的结果。

自然界的所有效应只是少数不变定律的数学结果。