Full Idea
Man is nothing else but the sum of his actions.
Gist of Idea
Man is nothing else but the sum of his actions
Source
Jean-Paul Sartre (Existentialism and Humanism [1945], p.41)
Book Reference
Sartre,Jean-Paul: 'Existentialism and Humanism', ed/tr. Mairet,Philip [Methuen 1980], p.41
A Reaction
This might be plausible if unperformed actions are included. For some people, their whole life story consists of what they failed to do.