Guy Steele's keynote at the 1998 ACM OOPSLA conference on "Growing a Language" (mostly about JAVA) discusses the importance of and issues associated with designing a programming language that can be grown by its users.
"It was only supposed to be a joke, I never thought people would take the book seriously. Anyone with half a brain can see that object-oriented programming is counter-intuitive, illogical and inefficient."
P. Fritzson, and V. Engelson. ECOOP’98 — Object-Oriented Programming, volume 1445 of Lecture Notes in Computer Science, Springer Berlin / Heidelberg, (1998)