世界上最好和最美丽的东西是看不见甚至摸不到的 - 它们必须用心去感受。
You have to be willing to be uncomfortable to be a writer.
Life's too short to be anything but happy.
The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.
In business, if you're not moving forward, you're falling behind.