Who said "The most important work is often invisible."?

This quote is attributed to Pink Floyd.

The most important work is often invisible. - Pink Floyd

"The most important work is often invisible."

Pink Floyd Work

Progressive Rock Band British Born 1965 (age 61)

"The more I think about it, the more I realize that the only thing we really have is time."

"Wish you were here."

"We don't need no education, we don't need no thought control."

"Hello, is there anybody out there?"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."