Nothing is more dangerous than discontinued labor; it is a habit lost. A habit easy to abandon, difficult to resume.

[Rien n’est plus dangereux que le travail discontinué; c’est une habitude qui s’en va. Habitude facile à quitter, difficile à reprendre.]

Victor Hugo (1802-1885) French writer

Les Misérables, Vol. 4 “St. Denis,” Book 2 “Eponine,” ch. 1 “The Field of the Lark” (1862) [tr. Wilbour]