The Four Steps
Aristotle said it this way:
- "That from which, as a constituent, something is generated; for example, the bronze is a cause of the statue..."
- "the form or the pattern, this being the formula of the essence..."
- "that from which change or coming to rest first begins..."
- "the end, and this is the final cause [that for the sake of which]...."
[From: Aristotle, Physics 194b24-33]