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心理学唯一有效的数据是可观察的行为。
Sustainability is not an option; it's a necessity for the future of our planet.
Technology in forestry should enhance nature's processes, not replace them.
We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes.
白天从妻子儿女的反应来省察自己的行为以看其是否诚信;夜晚由梦境情况来考验自己的志气,以知道其是否坚定。
爱情里面要是搀杂了和它本身无关的算计,那就不是真的爱情。