"The difference between correlation and causation is fundamental in empirical work."
成长的唯一途径就是挑战自己。
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.
领导力意味着为了更美好的明天而在今天做出艰难的决定。
The consequences of an act affect the probability of its occurring again.