过去总是存在，在我们耳边低语，塑造我们的脚步。

True success comes when your work makes a positive difference in people's lives.

时间是一条将我们带走的河流，但它也留下了我们存在的痕迹，就像沙滩上的脚印。

"Never confuse movement with action."

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.

最大的智慧是知道自己一无所知。