Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
The essence of mathematics lies in its freedom.
改变的秘诀在于集中你所有的精力,不是对抗旧的,而是建设新的。
The biggest flex is being comfortable in your own skin.
对变革的恐惧会扼杀进步,而理解变革能引导进步。