Survival is not about being fearless. It’s about making a decision, getting on and doing it, because you have to.

The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is?

Every problem in mathematics is an opportunity to learn something new.

The future of energy lies in finding the balance between traditional resources and renewable alternatives.

不承认公民权利的社会注定要衰败。