The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.
The most difficult challenges often present the greatest opportunities for transformation.
Capitalism, then, is by nature a form or method of economic change and not only never is but never can be stationary.
心理学的任务是将复杂的心理现象还原为最简单的组成部分。