林业的未来在于平衡经济增长与生态保护。
The great thing about rock and roll is that someone like me can be a star.
I'm not a freak. I was just born this way.
格雷厄姆-多德都市的超级投资者们-巴菲特1984哥伦比亚大学的演讲
数学的美在于它让我们看到世界上不立即显现的模式和结构。