安逸是智慧的危害;胆怯是勇敢的仇敌。
The writer must have the courage to say what others dare not say.
In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.
I am fascinated by the dark side of human nature.
领导力意味着在不确定性中采取行动,并在混乱中找到秩序。