I rarely explain or respond, but I know what I'm doing.
法律不是道德;不要期望它能完成只有道德才能完成的事情。
有一天我读了一本书,我的整个生活都改变了。
Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.