True friends are not those who have endless topics to talk about, but those who can stay together without feeling awkward even if they don't speak.
真正的朋友,不是在一起有聊不完的话题,而是在一起,就算不说话,也不会感到尴尬。
Leadership means making tough decisions today that will benefit everyone tomorrow.
科学家不是给出正确答案的人,而是提出正确问题的人。