"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."
我们认识的最美丽的人是那些经历过失败、痛苦、挣扎、失去，并找到从深渊中走出来的人。
The pursuit of science is more than the pursuit of understanding. It is the pursuit of a kind of wisdom that comes from knowing how much we do not know.
衡量智力的标准是改变的能力。
The most important thing in mathematics is to ask the right questions.