Why I didn't put up credit for the first 2 messages?
The first one is pulled off a song. What I hope to do when I quote songs is to give the reader a "hmmm", and if it does something for the reader, I hope they will search for the whole context. If it does nothing, then it doesn't matter who wrote it.
The second QOTD got no credit because I really don't know who the credit belong to. I have heard that saying from many people, I have even said the samething countless times myself.
And, sometime I am not going to include a "credit", to protect the innocent ;p