“We are, I know not how, double in ourselves, so that what we believe we disbelieve, and cannot rid ourselves of what we condemn.”
As quoted in The Complete Works of Michael de Montaigne (1877) edited by William Carew Hazlitt, p. 289
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Michel De Montaigne 264
(1533-1592) French-Occitan author, humanistic philosopher, … 1533–1592Related quotes

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Context: In each generation, with toil and tears, we have had to earn our heritage again. If we fail now, we shall have forgotten in abundance what we learned in hardship: that democracy rests on faith, that freedom asks more than it gives, and that the judgment of God is harshest on those who are most favored. If we succeed, it will not be because of what we have, but it will be because of what we are; not because of what we own, but, rather because of what we believe. For we are a nation of believers. Underneath the clamor of building and the rush of our day's pursuits, we are believers in justice and liberty and union, and in our own Union. We believe that every man must someday be free. And we believe in ourselves.
Blue Like Jazz (2003, Nelson Books)