Tractate Pirkei Avot - Chapter 6 - Mishnah 7

Great is Torah for it gives life to those that practice it, in this world, and in the world to come,As it is said: “For they are life unto those that find them, and health to all their flesh” (Proverbs 4:22), And it says: “It will be a cure for your navel and marrow for your bones” (ibid. 3:8) And it says: “She is a tree of life to those that grasp her, and whoever holds onto her is happy” (ibid. 3:18), And it says: “For they are a graceful wreath upon your head, a necklace about your throat” (ibid. 1:9), And it says: “She will adorn your head with a graceful wreath; crown you with a glorious diadem” (ibid. 4:9) And it says: “In her right hand is length of days, in her left riches and honor” (ibid. 3:1, And it says: “For they will bestow on you length of days, years of life and peace” (ibid. 3:2).