“Sometimes you have to go up really high to understand how small you are.”

"Unix and Beyond: An Interview with Ken Thompson," 1999
Context: Unix was a very small, understandable OS, so people could change it at their will. It would run itself—you could type "go" and in a few minutes it would recompile itself. You had total control over the whole system. So it was very beneficial to a lot of people, especially at universities, because it was very hard to teach computing from an IBM end-user point of view. Unix was small, and you could go through it line by line and understand exactly how it worked. That was the origin of the so-called Unix culture.

Source: Tiny Beautiful Things: Advice on Love and Life from Dear Sugar

You Know What They're Writing About
Song lyrics, Into the Music (1979)

Source: Never Let Me Go

Source: The Music Lesson

Source: Life, the Truth, and Being Free (2010), p. 131

Attributed

Podcast Series 1 Episode 3
On Sex

As quoted in: J.Muller, Physical Chemistry in Depth (Springer Science & Business Media, 1992), p. 1. No primary source is given in that book.
Disputed