What is thesis antithesis synthesis?

Thesis antithesis synthesis is a concept in personal epistemology: Thesis and antithesis can sometimes be resolved through synthesis that preserves truth from both.

Example: You believe 'move fast and break things' and you also believe 'measure twice, cut once.' These aren't competing personality traits — they're a thesis and antithesis. The synthesis: move fast on reversible decisions, measure twice on irreversible ones. The resulting principle is stronger than either original because it absorbed the valid signal from both.

This concept is part of Phase 19 (Contradiction Resolution) in the How to Think curriculum, which builds the epistemic infrastructure for contradiction resolution.