I also remember reading or hearing one of the original astronauts being ideologically resistant to private companies rather than civic supported programs being at the forefront of space exploration. However, here is the closest I can find, from Buzz Aldrin in a Reddit iAMA:
That's interesting, but a distinctly different topic. In the 60 Minutes show referenced in my Quora link, which is where I got the idea in the first place, Armstrong and Cernan were portrayed as being against private development in the manner of SpaceX because the profit motive would undermine safety.
https://www.reddit.com/r/IAmA/comments/2a5vg8/i_am_buzz_aldr...