I've heard people reminisce about how university was the best time of their life.
I've never heard anyone reminisce about how grad school was the best time of their life.
Why? Do I need to wait ten years until daily self-doubt has become a fading memory for my colleagues? Or is it that the goals of graduate school are so spread out that it's harder to achieve a feeling of accomplishment at regular enough intervals? Or is it that grad school is ultimately done for professional purposes, that it's a transitional credentialling and rarely an end in its own right? Or perhaps it's that those who really love grad school never end up in conversations which cause them to reflect that life was better back then?