Celebrity: the advantage of being known by those who do not know you.

[Célébrité: l’avantage d’être connu de ceux qui ne vous connaissent pas.]

Nicolas Chamfort (1741-1794) French writer, epigrammist (b. Nicolas-Sébastien Roch)

Products of Perfected Civilization [Produits de la Civilisation Perfectionée], Part 1 “Maxims and Thoughts [Maximes et Pensées],” ch. 1, ¶ 135 (1795) [tr. Mathers (1926)]
    (Source)

(Source (French)). Alternate translations:

Celebrity: the advantage of being known to those who do not know you.
[tr. Hutchinson (1902)]

Celebrity: the advantage of being known by those who do not know you.
[tr. Merwin (1969)]

Being a celebrity gives you the advantage of being known to those not of your acquaintance.
[tr. Pearson (1973)]

Celebrity: the advantage of being known by those who do not know you.
[tr. Dusinberre (1992)]

Celebrity: the advantage of being known by people who don't know you.
[tr. Parmée (2003), ¶ 111]

Celebrity: the advantage of being recognized by people who don't know you.
[Source]