From the first appearance of man upon the earth, down to very recent times, the words "stranger" and "enemy" were quite or almost, synonymous. Long a… - Abraham Lincoln

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From the first appearance of man upon the earth, down to very recent times, the words "stranger" and "enemy" were quite or almost, synonymous. Long after civilized nations had defined robbery and murder as high crimes, and had affixed severe punishments to them, when practiced among and upon their own people respectively, it was deemed no offence, but even meritorious, to rob, and murder, and enslave strangers, whether as nations or as individuals. Even yet, this has not totally disappeared. The man of the highest moral cultivation, in spite of all which abstract principle can do, likes him whom he does know, much better than him whom he does not know. To correct the evils, great and small, which spring from want of sympathy, and from positive enmity, among strangers, as nations, or as individuals, is one of the highest functions of civilization.