A mathematician is a device for turning coffee into theorems.
数学家是将咖啡转化为定理的装置。
民主的未来取决于其提供经济增长和社会正义的能力。
"Color is a language; it can convey mood, time, and even character development."
孔子说:“知道学习不如喜欢学习,喜欢学习不如以学习为快乐。”