"Beauty is truth, truth beauty,—that is all ye know on earth and all

Question:

"Beauty is truth, truth beauty,—that is all ye know on earth and all ye need to know." What the heck does

that mean? It made perfect sense to me when I was in high school but now I don't have a clue. Not only that but that last bit sounds kind of arrogant to me.

Best Answer - Chosen by Asker:

that the truth is beautiful and deceit its ugly? i disagree with it.