The secret to staying young is to live honestly, eat slowly, and lie about your age

A truly great book should be read in youth, again in maturity and once more in old age, as a fine building should be seen by morning light, at noon and by moonlight

The younger generation is supposed to rage against the machine, not for it. They're supposed to question authority, not question those who question authority

When we are young, we are slavishly employed in procuring something whereby we may live comfortably when we grow old; and when we are old, we perceive it is too late to live as we proposed

Age in a virtuous person, of either sex, carries in it an authority which makes it preferable to all the pleasures of youth

Youth is when you're allowed to stay up late on New Year's Eve. Middle age is when you're forced to

Youth is a silly, vapid state, Old age with fears and ills is rife This simple boon I beg of Fate - A thousand years of Middle Life

Forty is the old age of youth fifty is the youth of old age

Knowledge in youth is wisdom in age

Youth is the time of getting, middle age of improving, and old age of spending