On Generation and Corruption

OUR next task is to study coming-to-be and passing-away. We are to distinguish the causes and to state the definitions of these processes considered in general-as changes predicable uniformly of all the things that come-to-be and pass-away by nature. Further we are to study growth and alteration. We must inquire what each of them is; and whether alteration is to be identified with coming-to-be or whether to these different names there correspond two separate processes with distinct natures.