一个人不仅可以通过他的行为对他人造成伤害,也可以通过他的不作为对他人造成伤害,无论哪种情况,他都应对他们负有道义责任。
The hardest part of design is keeping features out.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法:它是关于理解的。
证明的严谨性将数学与所有其他科学区分开来。
Every day is a new opportunity to change your life.