Never overtrade. To do so is to violate a fundamental rule of successful trading.

适应性是当今动荡市场中企业最大的优势。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

君子不以水为镜，而以人为镜。以水为镜，只能看到面容；以人为镜，可以知道吉凶。