Petitől.
Withers was inspired to write this song after watching the 1962 movie Days of Wine and Roses. He explained, in reference to actors Lee Remick and Jack Lemmon, "They were both alcoholics who were alternately weak and strong. It's like going back for seconds on rat poison. Sometimes you miss things that weren't particularly good for you. It's just something that crossed my mind from watching that movie, and probably something else that happened in my life that I'm not aware of."
Withers had intended to write more lyrics instead of repeating the phrase "I know" over and over again, but then followed the advice of the other musicians to leave it that way: "I was this factory worker puttering around," Withers said. "So when they said to leave it like that, I left it." (Wikipédia)
És a remek Woven Hand: