The real is always mediated through the symbolic.
Change is not made without inconvenience, even from worse to better.
Words are traps, we step into them without knowing.
我不是先知或石器时代的人,只是一个有超人潜力的凡人。
我知道必须让孩子们有所专心,怠慢乃是孩子们最可怕的危险。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.