The balance between economic growth and environmental responsibility is the defining challenge of our time.
经济增长和环境责任之间的平衡是我们这个时代的决定性挑战。
"History is not the past. It is the method we have evolved of organizing our ignorance of the past."
To eat bread without hope is still slowly to starve to death.
找出你是否能信任某人的最好方法就是信任他们。
在数学中,你不理解事物。你只是习惯了它们。