Because every time he tried to integrate, he ended up with himself.
Good Vibrations
From trying to blow out lightbulbs.
I want to hang by myself for a bit. Edit: Not suicidal. Just gallows humor.
He had a wail of a time.
Neighbor
With fade out and to credits.
Because he is an ex-Terminator.
I do."
Leibniz was able to integrate in 1675.