If I devote myself to other pursuits and contemplations, I must first see, at least, that I do not pursue them sitting upon another man’s shoulders.
如果我投身其他事业与思考，至少首先得确认，我并不是坐在别人的肩上从事这些活动。
— Henry David Thoreau · On the Duty of Civil Disobedience —
键盘照着敲一遍，更容易记住。
不用找输入框，直接敲键盘。