People always lament the present as marked by decay, decadence, degeneration and decline; exhalting the past as one of radiance, rigour and rectitude. Steven Pinker said:
"Every generation thinks that the younger generation is dissolute, lazy, ignorant, and illiterate."
Hiraeth is the adjective which describes a deep nostalgia for the past. It's described like this: "A homesickness for a home to which you cannot return, a home which maybe never was; the nostalgia, the yearning, the grief for the lost places of your past." A commenter on Andrew Sullivan's blog, The Dish, wrote: