Mathematics is the foundation upon which all sciences are built.

No hay nada más peligroso que la idea de un solo hombre.

Quality is not a trend; it is a tradition.

It was always the view of my parents...that hot weather encouraged loose morals among young people.

有了一些小成绩就不求上进，这完全不符合我的性格。攀登上一个阶梯，这固然很好，只要还有力气，那就意味着必须再继续前进一步。