Here's one: It is never a waste of time to enjoy oneself unless such enjoyment interferes with other, even more enjoyable, activities.
Actually, being a bible, it should be put in a more formal style:
nadanotes. 2.23. Partake freely therefore of the bounteous earth, the dripping honey, the leavened bread, the flesh of goats and the flowing wine, but beware lest ye forfeit the greater good, the comfort of women and the long journey of the mind.
nadanotes. 2.24. For where your appetites are, there will your stomach be also.