+ 352 He would also say: Five years is the age for the study of Scripture. Ten, for the study of Mishnah. Thirteen, for the obligation to observe the mitzvot. Fifteen, for the study of Talmud. Eighteen, for marriage. Twenty, to pursue [a livelihood]. Thirty, for strength, Forty, for understanding. Fifty, for counsel. Sixty, for sagacity. Seventy, for elderliness. Eighty, for power. Ninety, to stoop. A hundred-year-old is as one who has died and passed away and has been negated from the world. Pirkei Avot 5:22