Bachelard's 1938 diagnostic catalog of the specific epistemological obstacles that have structured pre-modern thinking — and the method for recognizing them before the next rupture exposes them.
La formation de l'esprit scientifique (1938) is Bachelard's most systematic treatment of the epistemological obstacle. The book catalogs specific obstacles — the substantialist obstacle, the animist obstacle, the obstacle of primary experience, the unitary and pragmatic obstacles — that had structured pre-modern thinking about matter and that scientific practice had to overcome to constitute its modern form. The method is diagnostic: Bachelard reads the history of science as a clinic in which the patient is thought itself, and the pathology is the tendency of any successful framework to become the invisible condition of its own continued use. The book is Bachelard's most direct philosophical guide for the contemporary reader trying to recognize, in her own thinking, the obstacles that the next epistemological rupture will reveal.
The Formation of the Scientific Mind
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Each obstacle Bachelard catalogs has the same structure: a form of thought that was once useful, that became embedded in scientific practice, and that at some