Injustice…is a mother who is never barren, and bears children worthy of her.
L'injustice…est une mère qui n'est jamais sterile, et qui produit des enfants dignes d'elle.
Original text (French)
Notes from Wikiquote
Sainte-Beuve was here merely reporting words spoken by Adolphe Thiers, but many French quotation websites (e.g. Dico-Citations) attribute them to Sainte-Beuve himself.