Virtue is more to be feared than vice， because its excesses are not subject to the regulation of conscience.
释义：眼睛随便乱看就会使你惑乱，耳朵随意乱听就会使你迷惑，嘴巴随意胡说就会给你带来乱子。警示人们在日常生活中要保持谨言慎行的态度，以免招来祸患。
The purpose of education is not to fill the minds of students with facts but to teach them to think.
教育的目的不是用事实填满学生的头脑，而是教会他们思考。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.