The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.

The world doesn't need more plastic—it needs smarter ways to use it.

The best revenge is massive success.

我相信对你所做的事情有热情是很重要的。如果你没有热情，当事情变得艰难时，你就不会有继续前进的能量。

数学的本质在于它的自由。

I don’t let opinions define me, I let them refine me.

Writing is a way of living, a way of being in the world.