Date: 1964

"Let us all with drills and homework / Manufacture human minds."

— Anonymous [Free Speech Movement]

Date: 1966

"His mind works like a stopped clock, and the time is half-past McKinley."

— Author Unknown

Date: 1968

"Like a clock whose hands are sweeping / Past the minutes of its face, / And the world is like an apple / Whirling silently in space, / Like the circles that you find / In the windmills of your mind!"

— Bergman, Alan (b. 1925) and Marilyn Bergman [née Keith] (b.1929)

Date: 1972

"My brain hurt like a warehouse, it had no room to spare; / I had to cram so many things to store everything in there."

— Bowie, David [David Robert Jones] (1947-2016)

Date: 1988

"Just as a cake recipe requires you to use flour, sugar, and baking powder in the right amounts, your brain needs a fine chemical balance."

— Anonymous