物理学和数学之间的界限并不像人们想象的那么清晰。
市场足够有效,以至于大多数投资者无法超越它。
We are just beginning to scratch the surface of understanding how our bodies perceive the environment.
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.