可持续发展不是目的地,而是需要持续改进和创新的旅程。
The worse a situation becomes, the less it takes to turn it around, the bigger the upside.
如果你不喜欢某件事,就改变它。如果你无法改变它,就改变你的态度。
数学中的合作是必不可少的;没有人能独自解决所有问题。
I went to the woods because I wanted to live deliberately,I wanted to live deep and suck out all the marrow of life, To put to rout all that was not life, and not when I had come to die, Discover that I had not lived.