对认知的研究需要经验方法和理论方法的结合。
出自汉·桓宽《盐铁论·论灾》。兵器是凶器。盔甲坚固,兵器锋利,那是天下的祸害。此言战争对人类的危害性,寄寓了反对战争的思想。
He who knows only his side of the case knows little of that.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
To find yourself,think for yourself.
战争这种事,百年或许都用不上一次,但绝对不能有一天忘记它。