A culture of innovation is the source of an enterprise's vitality.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
能正确指出我缺点的人,是我的好老师;能赞成又能鞭策我的人,是我的好朋友;谄媚又阿谀奉承我的人,是害我的贼寇。