Sustainability isn't a trend, it's a necessity.
数学的进步不仅仅依靠个人的努力,而是通过几代人的集体工作。
把冬天当作正常季节,才能活得长久。
The great walks with the small without fear. The middling keeps aloof.
The beauty of literature lies in its ability to transcend time and place.
The past is always changing, because we are always changing our relationship to it.
格雷厄姆-多德都市的超级投资者们-巴菲特1984哥伦比亚大学的演讲