  Wright added to this that verification means empirical judgment made upon deduction of consequences, not induction either from sense data or examination of self-consciousness (PD 47). Nevertheless, even science that aims at a complete empiricism must admit some “ideal or transcendental elements.” In every case, however, these elements must yield consequences that are testable, either by themselves or in conjunction with empirically derived notions (PD 47). For example, from Wright's standpoint, the cosmological theory that the universe is developing, not just changing, might be a plausible interpretation of the data available to astronomers of his day. But he thought the notion of development relies implicitly on the idea of an end or culmination. So this “development theory,” which he calls “transcendental,” must still submit to empirical test (PD 17, 118). He denied Kant's division of knowledge into “data of experience and conditions of experience” and so did not admit the transcendental in the sense of the rational a priori (L 106).