The discovery of stars orbiting the supermassive black hole at the galactic center was a turning point in astrophysics.
发现恒星围绕银河系中心的超大质量黑洞运行是天体物理学的一个转折点。
No hay nada más peligroso que la idea de un solo hombre.
生存下来的不是最强壮的物种,也不是最聪明的,而是对变化反应最快的。
Leadership in times of change requires both vision and the courage to make difficult decisions.
我不是受害者。我是幸存者。
The gritty individual approaches achievement as a marathon; his or her advantage is stamina.
学习数学的最好方法就是去做数学。
We are never afraid of competition, because it makes us stronger.