You should learn from your competitor, but never copy. Copy and you die.
你应该向你的竞争对手学习，但永远不要抄袭。抄袭你就会死。
In mathematics, the art of proposing a question must be held of higher value than solving it.
没有创造力的效率只是瞎忙。
在数学中，最深刻的思想往往源于最简单的观察。