在计算机科学中，抽象是管理复杂性的关键。
In computer science, abstraction is the key to managing complexity.
Happiness requires both pleasure and purpose - neither alone is sufficient.
你总统领导不了是因为我。
Cheerfulness is the best promoter of health.
Being brave isn’t the absence of fear. Being brave is having that fear but finding a way through it.
勇敢不是没有恐惧。勇敢是虽有恐惧，但能找到克服它的方法。
只要你能坚持一步一步往前走，你几乎可以度过任何难关。