把燈籠背在背上的人，有黑影遮住前路。
交易中最重要的是管理風(fēng)險。
The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
Purposive behavior in animals and men.
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
Light is the magician of architecture.