“There is nothing more deplorable than those skeptics and reformers, liberal priests and humanistically-oriented scholars, who moan about “soullessness,” “barren materialism,” what is “unsatisfying in mere science,” and the “cold play of atoms,” and renounce intellectual precision, which is for them only a slight temptation. Then, with the help of some alleged “emotional knowledge” to satisfy the feelings, and with the “necessary” harmony and rounding-out of the world picture, all they invent is some universal spirit: a world-soul, or a God, who is nothing more than the world of the academic petite bourgeoisie which gives rise to him; at best, an oversoul who reads the newspaper and demonstrates a certain appreciation of social questions.”

Introduction
A Treatise of Human Nature (1739-40)
Context: Nothing is more usual and more natural for those, who pretend to discover anything new to the world in philosophy and the sciences, than to insinuate the praises of their own systems, by decrying all those, which have been advanced before them. And indeed were they content with lamenting that ignorance, which we still lie under in the most important questions, that can come before the tribunal of human reason, there are few, who have an acquaintance with the sciences, that would not readily agree with them. 'Tis easy for one of judgment and learning, to perceive the weak foundation even of those systems, which have obtained the greatest credit, and have carried their pretensions highest to accurate and profound reasoning. Principles taken upon trust, consequences lamely deduced from them, want of coherence in the parts, and of evidence in the whole, these are every where to be met with in the systems of the most eminent philosophers, and seem to have drawn disgrace upon philosophy itself.

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 147.

Volume III, part IV, chapter XVI (1856).
Modern Painters (1843-1860)

Source: The False Principle of our Education (1842), p. 23

Transcript of Tom Cruise on Scientology (January 16, 2008)

Source: Ludwig von Bertalanffy (1901-1972) (1989), p. 2

"Nothing in Biology Makes Sense Except in the Light of Evolution" (1973)

Große Männer nehmen sich selbst und die Dinge zu ernst, um öfter als gelegentlich »geistreich« zu sein. Menschen, die nichts sind als eben »geistreich«, sind unfromme Menschen; es sind solche, die, von den Dingen nicht wirklich erfüllt, an ihnen nie ein aufrichtiges und tiefes Interesse nehmen, in denen nicht lang und schwer etwas der Geburt entgegenstrebt. Es ist ihnen nur daran gelegen, daß ihr Gedanke glitzere und funkle wie eine prächtig zugeschliffene Raute, nicht, daß er auch etwas beleuchte! Und das kommt daher, weil ihr Sinnen vor allem die Absicht auf das behält, was die anderen zu eben diesen Gedanken wohl »sagen« werden—eine Rücksicht, die durchaus nicht immer »rücksichtsvoll« ist.
Source: Sex and Character (1903), p. 104.

Source: Innumeracy: Mathematical Illiteracy and its Consequences (1988), Chapter 4, “Whence Innumeracy?” (pp. 126-127)