Don't let yourself feel worthless: often through life you will really be at your worst when you seem to think best of yourself; and don't worry about losing your "personality," as you persist in calling it: at fifteen you had the radiance of early morning, at twenty you will begin to have the melancholy brilliance of the moon, and when you are my age you will give out, as I do, the genial golden warmth of 4 p.m.
F. Scott FitzgeraldIt is in the twenties that the actual momentum of life begins to slacken, and it is a simple soul indeed to whom as many things are as significant and meaningful at thirty as at ten years before. At thirty an organ-grinder is a more or less a moth eaten man who grinds an organ - and once he was an organ-grinder! The unmistakable stigma of humanity touches all those impersonal and beautiful things that only youth ever grasps in their impersonal glory.
F. Scott Fitzgerald