51. Two great masters of ecclesiastical science, the P.
Thomassin (Discipline de l'Eglise, tom. iii. p. 1090-1139)
and the P. Mabillon (Etudes Monastiques, tom. i. p.
116-155), have seriously examined the manual labour of the
monks, which the former considers as a 'merit', and the
latter as a 'duty'.