Perception is not determined simply by stimulus patterns; rather it is a dynamic searching for the best interpretation of the available data.
The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?
我不是女权主义者，但我确实相信女性的力量。
释义：通过分析物品的过剩与短缺，就能判断其价值的高低。这句话揭示了市场供求关系对价格的影响。
Security is not an add-on feature but the foundation.