The most painful state of being is remembering the future, particularly the one you'll never have.
最痛苦的存在状态是记住未来，尤其是你永远不会拥有的未来。
The most important thing in mathematics is to have a good intuition.
"The way you think about time changes as you get older."
未经反思的人生是半生，而传记就是那面镜子。