I'm not a pessimist. I'm an optimist trained in realism.
数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
最好的保护策略是将经济激励与生态效益结合起来。
最伟大的旅程是内心的旅程。
The most basic human desire is to be recognized as a human being, and the most basic human fear is to be treated as less than human.