Specialization Is for Insects is the manifesto's rallying cry, and it is borrowed. The line belongs to Lazarus Long in Robert A. Heinlein's Time Enough for Love (1973), where it caps a litany of human competences — change a diaper, plan an invasion, write a sonnet, set a bone, comfort the dying, die gallantly — before landing the verdict. The American "z" survives on purpose: it is a direct quotation, not house spelling.
Read it as a dare, not a slur. The motto is provocative by design — it wants an argument — but it is not contempt for depth. The manifesto closes, after all, in praise of The Specialist; the insult is aimed not at mastery but at the shapeless middle, the unchosen competence that is neither wide nor deep.
What the line demands is intention: be broad on purpose or deep on purpose, but refuse the default — the discipline The Vow asks of anyone who takes The Generalist Manifesto seriously.