I like it...
I often tell my wife and clients something similar. In essence it says that "want of more" steals the joy from what you already have.
Now, I do think
@OpusX is on to something. In a world of "fortunes" such as this one a line of cookies that toss out some pretty specific and wild fortunes would be a lot of fun. The "fortunes of humanity" line might include stock market predictions, news of births/deaths, warnings of tragedy ahead, statements about marital affairs and a whole lot more.
"buy XYZ now, it will make you rich in 34 days" (pretty much a 50/50 chance this one it right, the more who play the more who win)
"your closest significant female friend will die in 327 days"
"you will welcome a new baby to your household this year"
"Your partner is enjoying the company of an another" or "your partner KNOWS about your extra-marital activity...run"
"beware of flames lest you be burned over 40% of your body"
More importantly
@Spider, what Keto meal comes with a fortune cookie?