“A critic is a man who knows the way but can’t drive the car”

“A critic is a man who knows the way but can’t drive the car” is an often-reprinted line from English theatre critic Kenneth Tynan (1927 -1980). The New York (NY) Times Magazine of January 9, 1966, is often given as the source of the quotation, but it appeared earlier in the same magazine section on December 1, 1963.
   
     
Wikiquote: Kenneth Tynan
Kenneth Tynan (4 March 1927 – 26 July 1980) was a British author most famous for his theatre criticism.
 
Quotes
A critic is a man who knows the way but can’t drive the car.
. As quoted in “Critic Kenneth Tynan Has Mellowed But Is Still England’s Stingingest Gadfly” by Godfrey Smith in The New York Times (9 January 1966)
 
1 December 1963, New York (NY) Times, “‘To Divorce Art From Money-Making’; Art is a necessary social activity, argues a leading British critic” by Kenneth Tynan, Magazine, pg. 30:
A critic is a man who knows the way but can’t drive the car.
 
New York (NY) Times
January 9, 1966
Critic Kenneth Tynan Has Mellowed But Is Still England’s Stingingest Gadfly
By GODFREY SMITH
(...)
Critics—“A critic is a man who knows the way but can’t drive the car.”
 
Google Books
20,000 Quips & Quotes
By Evan Esar
New York, NY: Barnes & Noble Books
1995, ©1968
Pg. 195:
A critic is a man who knows the way but can’t drive the car. — Kenneth Tynan
 
Google Books
The 2,548 Best Things Anybody Ever Said
Edited by Robert Byrne
New York, NY: Fireside (Simon & Schuster)
2003
Pg. ?:
1,044
A critic is a man who knows the way but can’t drive the car. —Kenneth Tynan (1927–1980)
 
Google Books
Concise Oxford Dictionary of Quotations
Edited by Susan Ratcliffe
New York, NY: Oxford University Press
2011
Pg. 383:
Kenneth Tynan 1927—80
English theatre critic
A critic is a man who knows the way but can’t drive the car.
in New York Times Magazine 9 January 1966