On Youth And Old Age, On Life And Death, On Breathing

On Youth And Old Age, On Life And Death, On Breathing Aristotle - One of the short treatises that make up Aristotle''s Parva Naturalia. The title On Youth And Old Age, On Life And Death, On Breathing, given in the Medieval manuscripts, derives from the treatise''s opening words: ''We must now treat of youth and old age and life and death. We must probably also at the same time state the causes of ...