On Truth (1650-1699)

“Men are apt to prefer a prosperous error before an afflicted truth.” (Jeremy Taylor, “The Rule and Exercises of Holy Living”, 1650)

 “All things being double-handed, and having the appearances both of truth and falsehood, where our affections have engaged us we attend only to the former.” (Joseph Glanvill, “Scepsis”, 1665)

“Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.” (Blaise Pascal, “Pensées”, 1670)

“We see neither justice nor injustice which does not change its nature with change in climate. Three degrees of latitude reverse all jurisprudence: a meridian decides the truth.” (Blaise Pascal, “Pensées”, 1670)

“In logic, they teach that contraries laid together more evidently appear: it follows, then, that all controversy being permitted, falsehood will appear more false, and truth the more true; which must needs conduce much to the general confirmation of an implicit truth.” (John Milton, “True Religion, Heresy, Schism, Toleration, and what best means may be used against the Growth of Popery”, 1673)

“In practical life we are compelled to follow what is most probable; in speculative thought we are compelled to follow truth. […] we must take care not to admit as true anything, which is only probable. For when one falsity has been let in, infinite others follow.” (Baruch Spinoza, [letter to Hugo Boxel], 1674)

“Truth is always consistent with itself, and needs nothing to help it out; it is always near at hand, and sits upon our lips, and is ready to drop out before we are aware; whereas a lie is troublesome, and sets a man’s invention upon the rack, and one trick needs a great many more to make it good.” (John Tillotson, “Sermons”, 1682)

"And thus many are ignorant of mathematical truths, not out of any imperfection of their faculties, or uncertainty in the things themselves, but for want of application in acquiring, examining, and by due ways comparing those ideas." (John Locke, "An Essay Concerning Human Understanding", 1689)