在科学的道路上,没有平坦的大道可走,只有不畏劳苦沿着陡峭山路攀登的人,才有希望达到光辉的顶点。
"A book is a dream that you hold in your hand."
Every tree we plant today is an investment in tomorrow's clean air and healthy ecosystems.
当没有人相信你的时候,你必须相信自己。