Mathematics teaches us to think logically and to approach problems systematically.
New opinions are always suspected, and usually opposed, without any other reason but because they are not already common.
孔子说:“富和贵,人人向往,不以正当的方法得到的,不要享受;贫和贱,人人厌恶,不以正当方法摆脱的,不要逃避。君子扔掉了仁爱之心,怎么算君子?君子时刻不会违反仁道,紧急时如此,颠沛时如此。”
衡量一本好书的标准是它是否能让你以不同的方式看待世界。