However, you can convey the sentiment in a few ways:
More literal translations:
* Un seul amour: This literally translates to "one love" and is the closest you'll get to the original phrase.
* L'amour unique: This translates to "unique love" and emphasizes the special nature of the love.
More expressive translations:
* L'amour universel: This translates to "universal love" and speaks to a broader, inclusive love.
* L'amour pour tous: This translates to "love for everyone" and is a powerful way to express inclusivity.
Other options:
* Mon seul amour: This translates to "my only love" and is a more personal way to express the sentiment.
* L'amour que je ressens: This translates to "the love that I feel" and is a more poetic way to express love.
The best way to say "one love" in French depends on the context and what you want to emphasize.