Be a listener only, keep within yourself, and endeavor to establish with yourself the habit of silence especially in politics. In the fevered state of our country, no good can ever result from any attempt to set one of these fiery zealots to rights either in fact or principle. They are determined as to the facts they will believe and the opinions on which they will act. Get by them therefore as you would by an angry bull: it is not for a man of sense to dispute the road with such an animal.

Thomas Jefferson (1743-1826) American political philosopher, polymath, statesman, US President (1801-09)

Letter to Thomas Jefferson Randolph (24 Nov 1808)
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