As a Greek, living in Greece i second most of the terms. Know thyself (γνώθι σαυτόν) is a big one as well. Ancient Greeks were masters of psychology, i.e. what kind of animal humans are. Are we a good creature by nature or a bad one? The more we study chimps the more we realize that we, as their descendants, are pretty vicious as well. Education by our parents, schools and social circles play a big role, to keep in c…
First I'd heard of this, but there is some preliminary evidence that saffron has positive effects on depressive symptoms: https://academic.oup.com/nutritionreviews/article/77/8/557/5... But if this was really significant, you'd expect saffron-producing/eating countries to stand out. Iran is #1, are they really all 1,000,000x happy geniuses?
Some of the virtues of the article, are a state of mind anyway, that's why i mention saffron. Many people are eating too much, only to feel better. Food has certainly the ability to alter our state of mind, which in some cases ends up in obesity.
Virtues in the article, like apatheia, ataraxia, eudaimonia include in their meaning, not indulging in every pleasure in excess, and food is one of them. Well, that can be automated by producing more saffron and lowering it's price.