宇宙是一座黑暗森林，每个文明都是带枪的猎人，像幽灵般潜行于林间。

"The only real failure in life is not to be true to the best one knows."

The truth is always an insult or a joke.

The pursuit of mathematical knowledge is a journey that never ends, filled with endless curiosity and wonder.

"We are all our own graveyards I believe; we squat amongst the tombs of the people we were."

出自北齐·颜之推《颜氏家训·勉学》。积累财富千万，也胜不过多读些书有用。古代有“书中自有黄金屋，书中自有颜如玉”的说法，读好书就能财源滚滚、美女满室。这句话意在强调读书以立世的重要意义。