Work is the necessary condition of happiness. First, favorite and free work; secondly, the physical work which arouses your appetite and afterward gives you tranquil and sound sleep.
Manual labor does not exclude intellectual activity, but improves its quality and even helps it.
Constant idleness should be included in the tortures of hell, but it is, on the contrary, considered to be one of the joys of paradise.
— Charles De Montesquieu
When a person sets to work, even if it is the most unqualified, primitive, simple work, the human soul calms down. As soon as a person starts to work, all the demons leave him and cannot approach him. A man becomes a man.
— Thomas Carlyle
Work is necessary. If you want a good disposition of your spirit, work until you become tired. But not too much. Not until you become exhausted. A good spiritual disposition can be destroyed by excessive work as well as by idleness.