The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

"A book is a dream that you hold in your hand."

解释：既要追悔以往的过失，也要预防将来可能发生的错误。

Sustainability isn't just a goal; it's a responsibility we all share.

出自北齐·颜之推《颜氏家训·勉学篇》。秉，持、拿。犹，还。贤乎，胜于。少年时代就好学，就像是早上初升的太阳之光；老来才知道虚心向学，就像是拿着蜡烛走在暗夜中。尽管如此，还是比闭着眼睛什么也看不到要强多了。意在鼓励人们时刻不忘学习上进，如果错过学习的最佳时机，努力追补，仍然是精神可嘉的表现。

Life is either a daring adventure or nothing at all.

愤怒的老虎比教导的马更聪明。