Halakhah su Proverbi 21:23

But this entire heter of two witnesses in the case of a man who is likely "to rule for himself" is of avail only to rescue them from the issur of forbidden speech; but, in any case they do not thereby leave the class of "abettors to the committers of transgression." For through them the hearer will [most likely] do something forbidden. For according to the din it is forbidden for him to accept their words and do something himself to cause loss to his friend so long as they have not testified in beth-din and beth-din have allowed him to do this, as explained above in Principle VI, sections 9 and 10. Aside from this, it is very difficult to conceive of this din arising in reality, to permit it in this case (aside from the fact that it is very rare for all of the [necessary] conditions to coincide). For it is hardly to be found that those who speak by themselves [and not in beth-din] know in the beginning all the aspects of the dinim in such an instance so as to assess that what Ploni will do to him because of their speaking will accord with the din of the Torah. Therefore, care must be taken not to reveal anything to a man whose nature is to "rule for himself" without the permission of beth-din, so that they not be entrapped through him in the snare of "the men of the tongue." And "He who guards his mouth and his tongue guards his soul from distress" (Proverbs 21:23).

Good digestion occurs when the food consumed is not excessive, and when it is easily digestible. If you eat a lot and the stomach is full, then digestion becomes difficult, for then the stomach is not able to expand and contract, as it should by nature, to properly process the food. Just as with a fire, where if it is over-heaped with wood it will not burn well, so it is with the food in the stomach. Therefore, if you wish to guard the health of your body, be careful not to eat more than an amount that is average relative to your body’s constitution, neither too little nor to full satiation. Most illnesses that come upon people are due only to bad foods, or filling one’s belly and eating excessively even of good foods. Thus said King Solomon in his wisdom: “One who watches his mouth and his tongue guards his soul from troubles,”²Mishlei 21:23 meaning: guard your mouth from eating bad food and from being fully satisfied, and your tongue from speaking except as needed. Likewise the wise man said: One who eats a small amount of harmful foods is not harmed as much as one who eats excessively of good food.