数学研究是具体与抽象之间不断的对话。
The study of mathematics is a constant dialogue between the concrete and the abstract.
When we fail to set boundaries and hold people accountable, we feel used and mistreated.
我唱歌不是为了完美,我唱歌是为了活着。
成功在于做出正确的选择,而不仅仅是努力工作。
Democracy is the only system that can reflect the human spirit's indomitable will to be free.