造纸行业有责任在环境管理方面发挥领导作用。

世界充满了小小的乐趣；诀窍在于发现它们。

I'm not perfect, but I'm perfectly me.

Science is a way of thinking much more than it is a body of knowledge.

To think is to confine yourself to a single thought that one day stands still like a star in the world's sky.

真相很少是纯粹的，也从不简单。