Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.

【释义】：骄傲不应过度，欲望不能放纵，享乐不能极端，志向不宜自满。

The greatest danger to American agriculture is the loss of the family farm.

"We are the land, and the land is us."

I am a very committed wife. And I should be committed too - for being married so many times.