The great calamity of the passions is not the torments they cause but the wrongs, the base actions that they lead one to commit, and which degrade men. Without these hindrances the advantages of the passions would far outweigh those of cold reason, which renders no one happy. The passions make a man live, wisdom merely makes him last.

[Le grand malheur des passions n’est pas dans les tourmens qu’elles causent, mais dans les fautes, dans les turpitudes qu’elles font commettre, et qui dégradent l’homme. Sans ces inconvéniens, elles auraient trop d’avantage sur la froide raison, qui ne rend point heureux. Les passions font vivre l’homme, la sagesse le fait seulement durer.]

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. 2, ¶ 118 (1795) [tr. Merwin (1969)]
    (Source)

(Source (French)). Alternate translations:

The great evil of the passions does not lie in the torments which they bring upon men, but in the faults and shameful actions they cause him to commit. Were it not for this drawback they would have too great an advantage over cold reason, which can never be productive of happiness. His passions make man live, his wisdom only makes him last.
[tr. Mathers (1926)]

The unfortunate thing about passions is not the misery they make one commit, and which degrade man. Without these disadvantages, they would overpower cold reason, which does not in the least a source of happiness. Passions make men live, wisdom only makes the endure.
[tr. Pearson (1973)]

The great disaster of passions is not the torment they cause, but the debasing errors and depravity into which they lead men. Without these drawbacks, passion would enjoy many advantages over cold reason, which never produces happiness. Passions enable men to live, wisdom merely enables them to survive.
[tr. Dusinberre (1992)]

The great misfortune of passions does not come from the torments that they cause, but from the base things they make a person do, and which degrade him. Without these inconveniences, they would have too many advantages over cold reason, which never makes people happy. Passions make a man live, wisdom and facts only make him endure.
[tr. Siniscalchi (1994)]