translation.en: The big problems facing the world today are not at all things beyond our control. Our biggest threat is not an asteroid about to crash into us, something we can do nothing about.
translation.zh: 当今世界面临着的那些大的问题一点都没有 超出我们的控制范围。毕竟，我们面对的最大威胁并不是 小行星撞地球，如果是那样，我们倒的确只能坐以待毙。