“All work and no play makes Jack a dull boy” is the famous quote but I would add…
All work and no play make Jack a lonely boy because he will lose his family and his friends.
All work and no play make Jack a sick boy because play and recreation is essential to good health.
All work and no play make Jack a poor boy because learning to pace yourself with work and play will make you more effective and more profitable. You can end up making more by working less when you learn the value of recharging your physical, mental, and emotional batteries.