I say it's fun to be 20
You say it's great to be 30
And they say it's lovely to be 40
But I feel it's nice to be 50
　
　　　⋮
　
I say it's fine to be 60
You say it's alright to be 70
And they say still good to be 80
But I'll maybe live over 90
　
　　　⋮
　
I say it's sad to get weak
You say it's hard to get older
And they say that life has no meaning
But I still believe it's worth living