The best way to predict the future is to create it.
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
阈限性是两个阶段之间的过渡状态,个体不再处于前一个状态,但尚未进入下一个状态。
可持续性不是一种选择,而是煤炭行业的必需品。
数据是非常愚蠢的;它们不会告诉你任何关于因果关系的信息。