I was well known in my land for cleverness. In fact I was more smart than all my friends. It seems I have developed a defect which has disabled me to raise my head (i.e. regain my old prestige).
Note: Hazrat Adam was taught by Allah names of certain earthly objects and their knowledge put him on a higher pedestal than the angels, and it implied his superiority over them. But his later remisness in carrying out the Divine orders, even though based on a misunderstanding, pulled him down to an extremely ineviable position.