Muriel Barbery said this quote

... we absolutely mustn't forget it. We mustn't forget old people with their rotten bodies, old people who are so close to death, something that young people don't want to think about (so it is to retirement homes that they entrust the care of accompanying their parents to the threshold, with no fuss or bother). And where's the joy in these final hours they ought to be making the most of? They're spent in boredom and bitterness, endlessly revisiting memories. We mustn't forget that our bodies decline, friends die, everyone forgets about us, and the end is solitude. Nor must we forget that these old people were young once, that a lifespan is pathetically short, that one day you're twenty and the next day you're eighty.