心理活动是有机体与世界互动的方式。
The less secure a man is, the more likely he is to have extreme prejudice.
教育的功能是教人深入思考和批判性思考。
The Worldly Hope men set their Hearts upon Turns Ashes—or it prospers; and anon, Like Snow upon the Desert's dusty Face, Lighting a little hour or two—is gone.
The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.