Nothing is more dangerous than discontinued labour; it is habit lost. A habit easy to abandon, difficult to resume.[N’est plus dangereux que le travail discontinué; c’est une habitude qui s’en va. Habitude facile à quitter, difficile à reprendre.]
Source:(The Modern Library, ed. 1862), Volume IV. Saint Denis and Idyl of the Rue Plumet, Book II. Eponine, Chapter I. The Field of the Lark, Page 725