“In the general tendency toward specialization, philosophy too has established itself as a specialized discipline, one purified of all specific content. In so doing, philosophy has denied its own constitutive concept: the intellectual freedom that does not obey the dictates of specialized knowledge.”

Source: Ideas have Consequences (1948), p. 59.

Source: The Division of Labor in Society (1893), p. 40

Plough, Sword and Book (1988)
Context: When knowledge is the slave of social considerations, it defines a special class; when it serves its own ends only, it no longer does so. There is of course a profound logic in this paradox: genuine knowledge is egalitarian in that it allows no privileged source, testers, messengers of Truth. It tolerates no privileged and circumscribed data. The autonomy of knowledge is a leveller.

Source: The Russian Revolution (1918), Chapter Six, "The Problem of Dictatorship"

Source: Principles of industrial organization, 1913, p. 37

"Biological Potentiality vs. Biological Determinism", p. 251
Ever Since Darwin (1977)

Source: Think Big (1996), p. 207

Nobel lecture (1970)
Context: In recent times it has been fashionable to talk of the levelling of nations, of the disappearance of different races in the melting-pot of contemporary civilization. I do not agree with this opinion, but its discussion remains another question. Here it is merely fitting to say that the disappearance of nations would have impoverished us no less than if all men had become alike, with one personality and one face. Nations are the wealth of mankind, its collective personalities; the very least of them wears its own special colours and bears within itself a special facet of divine intention.

Source: 2010s, 2015, Crippled America: How to Make America Great Again (2015), p. 97