Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.
有时最深刻的数学来自于玩弄简单的想法,直到它们展现出隐藏的复杂性。
Sustainability isn’t an option; it’s the only way forward.
当你停止追求进步的那一刻,就是你开始死亡的那一刻。