In Pharell's song "Happy" there's a line that says "cause happiness is the truth". How many times do you think that line has been used in a comment or a talk by now?
As Bro. TwofacedElder gives his talk, "there's a very popular song out right now and there's a line in it that says "cause happiness is the truth", so brothers we must . . . . . . . . and keeps speaking ad nauseum.
Or Sis. PiousPioneer as she ends her comment in the WT study, "and even as the song says that's very popular right now "cause happiness is the truth". Probably making the others made because they wanted to use that in their comment.