The mind leans on [innate] principles every moment, but it does not come so easily to distinguish them and to represent them distinctly and separatel… - Gottfried Wilhelm Leibniz

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The mind leans on [innate] principles every moment, but it does not come so easily to distinguish them and to represent them distinctly and separately, because that demands great attention to its acts, and the majority of people, little accustomed to think, has little of it.