1. He held that a man of learning, if he does not wish to degrade himself, must never cease to participate in public affairs — he must not shut himself up in his study or laboratory and shun the social and political struggles of the day. 他认为,一个有学问的人,除非他自甘落伍,应该从不停止参加公众活动——他不能把自己关在书房或实验室中,逃避现实社会和政治斗争。