Gluttony is the vice of feeble minds. The gourmand has his brains in his palate, he can do nothing but eat… — Jean Jacques Rousseau

Gluttony is the vice of feeble minds. The gourmand has his brains in his palate, he can do nothing but eat; he is so stupid and incapable that the table is the only place for him, and dishes are the only things he knows anything about. Let us leave him to this business without regret; it is better for him and for us.

In the original (French)

La gourmandise est le vice des cœurs qui n’ont point d’étoffe. L’âme d’un gourmand est toute dans son palais; il n’est fait que pour manger; dans sa stupide incapacité, il n’est qu’à table à sa place, il ne sait juger que des plats; laissons-lui sans regret cet emploi; mieux lui vaut celui-là qu’un autre, autant pour nous que pour lui.

Source: Wikiquote · CC BY-SA 4.0