Pope John XXIII
Mater et Magistra §250
Mater et Magistra: On Christianity and Social Progress
250 In addition, man has a right to rest a while from work, and indeed a need to do so if he is to renew his bodily strength and to refresh his spirit by suitable recreation. He has also to think of his family, the unity of which depends so much on frequent contact and the peaceful living together of all its members.
Source: Mater et Magistra (Vatican.va)