Ética, Parte III, Proposição 36
He who remembers a thing, in which he has once taken delight, desires to possess it under the same circumstances as when he first took delight therein.
Demonstração
Everything, which a man has seen in conjunction with the object of his love, will be to him accidentally a cause of pleasure (III. xv.); he will, therefore, desire to possess it, in conjunction with that wherein he has taken delight; in other words, he will desire to possess the object of his love under the same circumstances as when he first took delight therein. Q.E.D.
Corolário
A lover will, therefore, feel pain if one of the aforesaid attendant circumstances be missing.
Corolário, Demonstração
For, in so far as he finds some circumstance to be missing, he conceives something which excludes its existence. As he is assumed to be desirous for love's sake of that thing or circumstance (by the last Prop.), he will, in so far as he conceives it to be missing, feel pain (III. xix.). Q.E.D.
Escólio
This pain, in so far as it has reference to the absence of the object of love, is called Regret.
Benedict de Spinoza, The Ethics (Ethica Ordine Geometrico Demonstrata), traduzido do latim por R. H. M. Elwes.
Primeira publicação em The Chief Works of Benedict de Spinoza, vol. II (London: George Bell and Sons, 1884).
Esta tradução está em domínio público nos Estados Unidos, onde foi publicada em 1884, e em todos os lugares onde o prazo de direitos autorais é a vida do autor mais 100 anos ou menos; seu tradutor morreu em 1892.
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Texto digital: Project Gutenberg eBook #3800