“Culture is an instrument wielded by professors to manufacture professors, who, when their turn comes, will manufacture professors.”

Often attributed to Auden, but he was repeating an anonymous joke; he did not claim to have originated it. See "Who Wrote Auden's Definition of a Professor?" http://www.audensociety.org/definition.html
Misattributed

Source: Seven Great Statesmen in the Warfare of Humanity with Unreason (1915), p. 114
Context: The work of this young professor (Thomasius) and his disciples was to dethrone the heavy Protestant orthodoxy which had nearly smothered German patriotism, to undermine the pedantry which had paralyzed German scholarship, to substitute thought for formulas, to bring right reason to bear upon international and municipal law, to discredit religious intolerance, to root out witchcraft persecution and procedure by torture from all modern codes, and to begin that emancipation, of public and especially university instruction from theological control, which has given such strength to Germany, and which today is invincibly making its way in all other lands, including our own.

Source: Walden

[Schlafly, Phyllis, 2005, April, Feminist Mischief on College Campuses, Phyllis Schlafly Report, 38, 9, http://www.eagleforum.org/psr/2005/apr05/psrapr05.html, 2007-03-30]

Drawn and Quartered (1983)

Source: Zen and the Art of Motorcycle Maintenance (1974), Ch. 29
Context: The Professor of Philosophy has made a mistake. He's wasted his disciplinary authority on an innocent student while Phædrus, the guilty one, the hostile one, is still at large. And getting larger and larger. Since he has asked no questions there is now no way to cut him down. And now that he sees how the questions will be answered he's certainly not about to ask them.
The innocent student stares down at the table, face red, hands shrouding his eyes. His shame becomes Phædrus' anger. In all his classes he never once talked to a student like that. So that's how they teach classics at the University of Chicago. Phædrus knows the Professor of Philosophy now. But the Professor of Philosophy doesn't know Phædrus.

Source: Adventures of a Mathematician - Third Edition (1991), Chapter 5, Harvard Years, p. 91

Great Books: The Foundation of a Liberal Education (1954)