消费者是老板。我们必须倾听、适应并交付他们真正想要的东西。
学习数学的唯一方法就是做数学。
The world is a cruel place, but it is also beautiful.
——《在东京中国留学生欢迎大会的演说》(1905年8月13日)
Success is not about the money or fame, it's about the impact you have on others.