skopia
Hegel tracks the mind from bare sensation to full self-knowledge, each stage collapsing under its own contradictions into the next. His fight between master and slave has been argued over ever since.
Leibniz answers Descartes and Spinoza with a universe of self-contained substances, each carrying its whole history and future inside its own concept and mirroring the world from where it stands.
Set theory, Badiou insists, is the only language that can say what being is. Truth erupts as an event in politics, art, science, or love, and a subject is whoever stays faithful.