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But the faithful were not troubled by consistency,'the bugbear of little minds'- and the ratbane of inconsistent bigots.

What does ratbane mean? There is a clue on Wikipedia, but I don't understand it. I should mention the sentence is from Eric Temple Bell's Men of Mathematics.

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So, you are saying you know bugbear but not ratbane? – GEdgar Sep 1 '13 at 19:38
@GEdgar I've found "bugbear"'s meaning in dictionary but "ratbane" can't be found – Zeta.Investigator Sep 1 '13 at 20:22
@Jasper, what is the reason for editing? What was wrong with the former structure ? I've heard it in a Period drama – Zeta.Investigator Sep 1 '13 at 20:24
up vote 2 down vote accepted

Rat poison. It says that consistency would be fatal to bigots.

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Doesn't either. It says consistency would be fatal to inconsistent bigots, not bigots in general. – jwpat7 Sep 1 '13 at 18:16
Thanks. Can you take a look at this post also? english.stackexchange.com/questions/124780/… – Zeta.Investigator Sep 1 '13 at 18:23

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