I want my books to be a mirror, not a window.
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
能源领域的真正领导力在于平衡经济增长与环境责任
I've had to learn to shake things off and move on.
The competitor to be feared is one who never bothers about you at all, but goes on making his own business better all the time.