The presence of people we like gives a marvelous relish to our pleasures.

[C’est un merveilleux assaisonnement aux plaisirs qu’on goûte que la présence des gens qu’on aime.]

Molière (1622-1673) French playwright, actor [stage name for Jean-Baptiste Poquelin]

Le Misanthrope, Act 5, sc. 4 (1666) [tr. Page (1913)]
    (Source)

Alt. trans.: "It is a wonderful seasoning of all enjoyments to think of those we love." [tr. Wormeley (1894)]

Original French.