diff --git a/quotes/lincoln_degeneracy.txt b/quotes/lincoln_degeneracy.txt
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+“Our progress in degeneracy appears to me to be pretty rapid. As a nation, we began by declaring that 'all men are created equal.' We now practically read it, 'all men are created equal, except negroes.' When the Know-Nothings get control, it will read, 'all men are created equal, except negroes, and foreigners, and Catholics.' When it comes to this I should prefer emigrating to some country where they make no pretense of loving liberty—to Russia, for instance, where despotism can be taken pure, and without the base alloy of hypocrisy.”
+― Abraham Lincoln, Speeches and Writings, 1832-1858
diff --git a/quotes/paradox_of_the_tolerant.txt b/quotes/paradox_of_the_tolerant.txt
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+Philosopher Karl Popper defined the paradox in 1945 in The Open Society and Its Enemies Vol. 1.
+"Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them."
diff --git a/quotes/sagan_charlatan.txt b/quotes/sagan_charlatan.txt
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+"One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. We’re no longer interested in finding out the truth. The bamboozle has captured us. It’s simply too painful to acknowledge, even to ourselves, that we’ve been taken. Once you give a charlatan power over you, you almost never get it back."
+Carl Sagan
diff --git a/quotes/wiesel_indifference.txt b/quotes/wiesel_indifference.txt
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+"The opposite of love is not hate, it's indifference. The opposite of beauty is not ugliness, it's indifference. The opposite of faith is not heresy, it's indifference." - Elie Wiesel