抽象的力量使数学能够超越物理现实的限制。
The power of abstraction is what allows mathematics to transcend the limits of physical reality.
You can’t connect the dots looking forward; you can only connect them looking backwards.
Your body is not a temple， it's an amusement park. Enjoy the ride.
古代学者在内心涵养上下功夫，所以表现在外表上便是德高望重的标志；今天的学者在外表上下功夫，对于内心涵养，则显出实际德行的缺陷。
In darkness, we learn to seek light; in despair, we learn to seek hope.