Musar su Proverbi 16:15

The seventh: His face [should] always be shining and he [should] receive every person with a pleasant countenance. As so it is stated about the Highest Crown, "There is life in the light of the face of the King" (Proverbs 16:15); and no redness (harshness) or judgement enters there at all. So [should] the light of his face not be changed; anyone who gazes at him will only find joy and a pleasant countenance. And no cause [should] disrupt him from this at all.

When a righteous man likes people and people are pleased with him, then the Holy One, Blessed be He, also is pleased with him. For thus did they say : "One with whom men are pleased, God is pleased" (Aboth 3:10). And even his enemies make peace with him, as it is written : "When a man's ways please the Lord, He maketh his enemies to be at peace with him" (Prov. 16:7), as you know concerning Abimelech and Abraham … (Genesis Rabbah 54a). And when they make peace with him it is said "In the light of the King's countenance is life, and his favour is as a cloud of the latter rain" (Prov. 16:15).

The sense of smell also commands four qualities -- Anger, Good-will, Jealousy, and Wide-awakedness. Anger is attributed to the sense of smell, as it is said (Jud. xiv. 19), "And his nose (anger) was kindled": anger, indignation, and wrath appear mostly in connection with the nose, as it is said (Dan. iii. 19), "Then was Nebuchadnezzar full of fury, and the form of his nose (visage) was changed." Good-will consists in the tranquility of the thoughts, which are in the brain, and it is not altered by an "illness" of the sense of smell, though the nearest among the senses affecting it. Concerning good-will it is said (Prov. xvi. 15), "In the light of the king's nose (countenance) is life, and his favor is as a cloud of the latter rain."