The world is given to me only once, not one existing and one perceived.

A mathematician's work is mostly a solitary pursuit, but it is also deeply collaborative.

Understanding is inventing.

柠檬问题发生的原因是卖家比买家更了解产品，从而导致市场失灵。

Collaboration across sectors is the only way to solve forestry's greatest challenges.

I believe in the power of dreams. Dreams are what drive us forward.

只要你需要，我就在这里。