Lifelong Torah Learning

[Judah ben Tema] used to say:

At five years of age the study of Scripture;
At ten the study of Mishnah;
At thirteen subject to the commandments;
At fifteen the study of Talmud;
At eighteen the bridal canopy;
At twenty for pursuit [of livelihood];
At thirty the peak of strength;
At forty wisdom;
At fifty able to give counsel;
At sixty old age;
At seventy fullness of years;
At eighty the age of “strength”;
At ninety a bent body;
At one hundred, as good as dead and gone completely out of the world.