This essay centralizes and explores Ernst Cassirer’s concept of style. Although it does not emerge as much as the concept of form or symbol in Cassirer’s corpus, style plays a major—if intrinsic—role throughout the Philosophy of Symbolic Forms. I shall examine how Cassirer’s conception of style is derived from Goethe’s theory of art and why it is fundamental to Cassirer’s theory of knowledge. Style is considered the defining feature of the cultural sciences, as well as the sign of the anthropological character of the natural sciences, and, more generally, as the creative principle underlying all objectivity. I argue that it is therefore justified to read style as the fundamental yet variable expression of our symbolic relation to reality. Indeed, style refers neither to an abstract principle nor to a predetermined truth: it is a formative force actualizing itself in the incessant diversification of its forms. In so doing, Cassirer’s underexamined concept of style proves highly relevant in our times of epistemic and cultural pluralism.