一个试图教学而不激发学生学习欲望的教师,就像在冷铁上敲打。
Art is humanity's last line of defense.
Innovation is not just about creating something new; it's about making a difference.
除非一个人绝对诚实地问自己在类似情况下是否可能做出同样的事,否则他不应评判他人。
四元数的诞生,如同几何、代数、形而上学和诗歌这四位父母的奇特后代。