These emotions can then feed back into the brain, generating a self-perpetuating cycle of love.

然后这些情绪反馈到大脑中，产生爱的自生自存循环。

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Ladies of fashion starve their happiness to feed their vanity, and their love to feed their pride. — Charles Colton.

时尚女士们往往牺牲幸福来满足虚荣，舍弃爱情来满足骄傲。——查尔斯·科尔顿。

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Therefore, I believe while parents are giving sweet care to their children, they should also feed them with the taste of bitterness. Only such love is rational.

所以，我认为父母在给孩子甜蜜关怀的同时，也应把苦、辣、酸、咸让孩子知道一些、尝受一些。这样的爱才是理智的。

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American farmers and ranchers are proud to grow the food, feed, fuel, and fiber that enhance our national security and prosperity, and remain steadfast stewards of the land they love.

WHITEHOUSE: The White House