不可能与可能之间的区别在于一个人的决心。
拿一个物体。对它做点什么。再对它做点别的。
The pursuit of mathematical knowledge is a journey that never ends.
"To read is to travel without moving an inch."
Foreign policy should not be confused with missionary work.
我不需要别人的认可。我知道自己的价值。