For over two billion years, through the apparent fancy of her endless differentiations and metamorphosis the Cell, as regards its basic physiological mechanisms, has remained one and the same. It is life itself, and our true and distant ancestor. Albert Claude
I awake with a not entirely sickened knowledge that I am merely young again and in a funny way at peace, an observer who is aware of time's chariot, aware that some metamorphosis has occurred. Harold Brodkey
In biology, the imago is the last stage of development of an insect, after the last ecdysis of an incomplete metamorphosis, or after emergence from the pupa where the metamorphosis is complete.