"Let me start by saying that I do not enjoy nor relish the partisan role of attack dog. I never found any fun in that. I don't think it's constructive. I don't intend to become that here in the Senate."

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Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.

— Carl Sagan