The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.
Leadership means making tough decisions today that will shape a better tomorrow.
"To write is to resist, to resist is to exist."
我书中的角色通常是那些在世界上努力寻找自己位置的人。
气候变化是本世纪的战斗,我们必须赢得胜利。