70岁，我才刚刚开始。等着瞧吧。

Mathematics is the foundation upon which all science is built.

Innovation isn’t just about technology; it’s about changing the way we think and operate.

文学是语言的艺术，而语言是沟通的艺术。

无产阶级是普遍的阶级，他们的根本锁链是可以破裂的阶级。