Ethics, Part V, Proposition 8
An emotion is stronger in proportion to the number of simultaneous concurrent causes whereby it is aroused.
Proof
Many simultaneous causes are more powerful than a few (III. vii.): therefore (IV. v.), in proportion to the increased number of simultaneous causes whereby it is aroused, an emotion becomes stronger. Q.E.D.
Note
This proposition is also evident from V. Ax. ii.
Benedict de Spinoza, The Ethics (Ethica Ordine Geometrico Demonstrata), translated from the Latin by R. H. M. Elwes.
First published in The Chief Works of Benedict de Spinoza, vol. II (London: George Bell and Sons, 1884).
This translation is out of copyright in the United States, where it was published in 1884, and wherever the copyright term is the author's life plus 100 years or less; its translator died in 1892.
Unit divisions, headings and the placement of notes are this site's.
Digital text: Project Gutenberg eBook #3800