造纸业有着丰富的历史，但我们必须始终向前看。

Get rich or die tryin'.

算法研究既关乎逻辑和数学，也关乎创造力。

Small changes can have big effects when they help people break out of the poverty trap.

Concrete is the marble of our time, a democratic material.

Farmers' income growth cannot rely solely on policies, but more on market mechanisms and industrial upgrading.

释义：小的善行虽然不能带来巨大的好处，但是不能不做；小的恶行虽然不能惹来灾祸，但是不能不改。

追求数学知识是一段永无止境的旅程。