Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我们都是某种手艺的学徒,而没人能成为大师。
Every tree we plant today is a legacy for generations we'll never meet.
如果攻击特别伤人,我总是非常高兴,因为我想,如果他们攻击个人,这意味着他们没有留下任何政治论点。