Happiness is brief. It will not stay. God batters at its sails.
安全必须始终是我们每天每项操作的首要任务。
Psychology must be a purely descriptive science.
我认为,机器不会产生惊喜的观点是由于哲学家和数学家特别容易犯的一个谬误。
Coal has powered our past, but we must be honest about its role in our future.