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Darkness cannot drive out darkness； only light can do that.Hate cannot drive out hate； only love can do that.

激發(fā)對一門學(xué)科興趣的最好方法是使其值得了解，這意味著要使知識可用。

The jaws of power are always open to devour, and her arm is always stretched out, if possible, to destroy the freedom of thinking, speaking, and writing.