To expose vices to the ridicule of all the world is a severe blow to them. Reprehensions are easily suffered, but not so ridicule. People do not mind being wicked; but they object to being made ridiculous.

[C’est une grande atteinte aux vices que de les exposer à la risée de tout le monde. On souffre aisément des répréhensions, mais on ne souffre point la raillerie. On veut bien être méchant, mais on ne veut point être ridicule.]

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

Tartuffe, Preface (1664) [tr. Van Laun (1876)]
    (Source)

Alt. trans.: "To expose vices to everyone’s laughter is to deal them a mighty blow. People easily endure reproofs, but they cannot at all endure being made fun of. People have no objection to being considered wicked, but they are not willing to be considered ridiculous." [tr. Kerr]