Bertrand Russell Quote

To speak of the cause of an event is therefore misleading. Any set of antecedents from which the event can theoretically be inferred by means of correlations might be called a cause of the event. But to speak of the cause is to imply a uniqueness which does not exist.

Mysticism and Logic: And Other Essays, Chapter VII (p. 136), Longmans, Green & Co. 1919