quote · Legacy record
What causes love, since it is a passion, is its object; and since it is a sort of affinity or agreement with the object, what causes love is the goodness or agreeableness of that object. Evil can only be loved because it seems good, because being partially good it is perceived as wholly so. And the beautiful is a form of the good: if something is agreeable in general we call it good, and if the perception of it is agreeable we call it beautiful. But goodness must be known before it can become the object of love, so knowledge itself can be said to cause love. Knowing is an activity of reason, which abstracts from things and then makes connections between them, needing to know each part and property and power of things if it is to know them perfectly. But loving is an appetite for things as they stand, and to love perfectly we need only love them as they are perceived to exist in themselves.
What causes love, since it is a passion, is its object; and since it is a sort of affinity or agreement with the object, what causes love is the goodness or agreeableness of that object. Evil can only be loved because it seems good, because being partially good it is perceived as wholly so. And the beautiful is a form of the good: if something is agreeable in general we call it good, and if the perception of it is agreeable we call it beautiful. But goodness must be known before it can become the object of love, so knowledge itself can be said to cause love. Knowing is an activity of reason, which abstracts from things and then makes connections between them, needing to know each part and property and power of things if it is to know them perfectly. But loving is an appetite for things as they stand, and to love perfectly we need only love them as they are perceived to exist in themselves.
Approximate author period: c. 1249 AD · medieval
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- Author or tradition
- Thomas Aquinas
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- Approximate author period: c. 1249 AD · medieval
Approximate author-period evidence for Thomas Aquinas: life dates 1225 to 1274. Wikidata Q9438, inspected 2026-10-08. Not a quotation composition date or independent verification of attribution. Source: https://www.wikidata.org/wiki/Q9438 (accessed 2026-10-08).
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Supplied reference C; CSV row 12967; supplied attribution, independently unverified
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