The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
今天我们种下的每棵树都是对未来清洁空气和健康生态系统的投资。
孔子说:“年轻人应该孝顺父母,尊敬师长,认真诚信,广施爱心,亲近仁人志士。能轻松做到这些,才可以从事理论研究。”
"Every word is a choice, and every choice carries a consequence."