“The science of political economy is essentially practical, and applicable to the common business of human life. There are few branches of human knowledge where false views may do more harm, or just views more good.”
Book I, Introduction, p. 9
Principles of Political Economy (Second Edition 1836)
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Thomas Robert Malthus 60
British political economist 1766–1834Related quotes
“We keep, in science, getting a more and more sophisticated view of our essential ignorance.”
Source: "A Scientist Ponders Faith," Saturday Review, 3 (January 1959), as cited in: F.A. Hayek, Ronald Hamowy. The Constitution of Liberty: The Definitive Edition. 2013, p. 77.
Context: Is science really gaining in its assault on the totality of the unsolved? As science learns one answer, it is characteristically true that it also learns several new questions. It is as though science were working in a great forest of ignorance, making an ever larger circular clearing within which, not to insist on the pun, things are clear... But as that circle becomes larger and larger, the circumference of contact with ignorance also gets longer and longer. Science learns more and more. But there is an ultimate sense in which it does not gain; for the volume of the appreciated but not understood keeps getting larger. We keep, in science, getting a more and more sophisticated view of our essential ignorance.
Source: A Long Search for Information (2004), p. 24-25.

Freedom for Über-Marionettes: What Science Won't Tell You (p. 149)
The Soul of the Marionette: A Short Enquiry into Human Freedom (2015)

Source: "The Latest Attack on Metaphysics" (1937), p. 133.

Introductory
A Treatise on Man and the Development of His Faculties (1842)
Context: It is a remarkable fact in the history of science, that the more extended human knowledge has become, the more limited human power, in that respect, has constantly appeared. This globe, of which man imagines the haughty possessor, becomes, in the eyes of astronomer, merely a grain of dust floating in immensity of space: an earthquake, a tempest, an inundation, may destroy in an instant an entire people, or ruin the labours of twenty ages.... But if each step in the career of science thus gradually diminishes his importance, his pride has a compensation in the greater idea of his intellectual power, by which he has been enabled to perceive those laws which seem to be, by their nature, placed for ever beyond his grasp.

"By the Numbers" (May 1973), in The Tragedy of the Moon (1973), p. 190
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