The essence of mathematics lies in its freedom.
数学的本质在于其自由性。
计算机网络中最重要的东西是协议。
农业的成功不仅仅关乎产量,还关乎为后代守护土地的责任。
We are all prisoners of our own perceptions.
We must remember that we are not the only species that matters on this planet.