(Devarim, Ibid.) "and by this thing (Torah study) you shall prolong days.": This is one of the things, which, by doing them, one eats their fruits in this world and "prolongs days" in the world to come, viz. "for it is your life, and by this thing you shall prolong days." Whence do we derive (the same for) honoring father and mother? From (Devarim 5:16) "Honor your father and mother so that your days be prolonged and so that it be good for you, etc." Whence do we derive (the same for) lovingkindness?
From (Proverbs 21:21) "He who pursues righteousness and lovingkindness will find life, righteousness, and honor." Whence do we derive (the same for) the conferring of peace (upon man and his neighbor)? From (Psalms 34:15) "Seek peace and pursue it," and (Isaiah 54:13) "and all of your children learned of the L-rd, and an abundance of peace (will be the lot of) your children."