Human health requires relaxation. Here are some good quotes on rest and relaxation.
It is requisite for the relaxation of the mind that we make use, from time to time, of playful deeds and jokes. ~Saint Thomas Aquinas
Sometimes the most urgent and vital thing you can possibly do is take a complete rest. ~Ashleigh Brilliant
He that can take rest is greater than he that can take cities. ~Benjamin Franklin
Rest is the sweet sauce of labor. ~Plutarch
Rest is not idleness, and to lie sometimes on the grass on a summer day listening to the murmur of water, or watching the clouds float across the sky, is hardly a waste of time. ~Sir John Lubbock
I still need more healthy rest in order to work at my best. My health is the main capital I have and I want to administer it intelligently. ~Ernest Hemingway
Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer. Go some distance away because then the work appears smaller and more of it can be taken in at a glance and a lack of harmony and proportion is more readily seen. ~Leonardo Da Vinci
The time to relax is when you don’t have time for it. ~Sidney J. Harris
Man needs a day of rest from the cares, toils, and trials of the six days of work in the material realm. He needs to reflect, meditate, contemplate, and to turn his eyes inward, as it were, rather than outwards. ~Anonymous
A good rest is half the work. ~Yugoslavian proverb