his belief that the Eisenhower administration "was committed by policy to the persecution of scientists, or, at the very least, to a callous indifference toward what others were doing to attack and discredit them. I decided the situation was hopeless, and that I had done all that could be reasonably expected of me in having resisted these forces for seven long years". Years later, Carl Sagan reported how Condon described one encounter with a loyalty review board. A board member stated his concern: "Dr. Condon, it says here that you have been at the forefront of a revolutionary movement in physics called ... quantum mechanics. It strikes this hearing that if you could be at the forefront of one revolutionary movement ... you could be at the forefront of another". Condon said he replied: "I believe in Archimedes' Principle, formulated in the third century B.C. I believe in Kepler's laws of planetary motion, discovered in the seventeenth century. I believe in Newton's laws ...." and continued with a catalog of scientists from earlier centuries, including the Bernoulli, Fourier, Ampère, Boltzmann, and Maxwell. He once said privately: "I join every organization that seems to have noble goals. I don't ask whether it contains Communists". Academia Condon was professor of physics at Washington University in St. Louis from 1956 to 1963 and then at the University of Colorado Boulder from 1963, where he was also a fellow of the Joint Institute for Laboratory Astrophysics, until retiring in 1970. From 1966 to 1968, Condon directed Boulder's UFO Project, known as the Condon Committee. He was chosen for his eminence and his lack of any stated position on UFOs. He later wrote that he agreed to head the project "on the basis of appeals to duty to do a needed public service" on the part of the U.S. Air Force Office of Scientific Research.<ref>[[#Dick|Dick, Biological, 293]]</ref> Its 1968 final report - which drew on Project Blue Book information from the USAF, as well as reports collected by two civilian organisations - concluded that unidentified flying objects had prosaic explanations. Blue Book was terminated at the end of 1969 - shortly after the Condon Report reached the general public - and the latter work has been cited as a key factor in the generally low levels of interest in UFOs taken subsequently by mainstream scientists and academics.. A role in this was played by Yuletide