The notion of causality as physical necessity, in opposition to the same notion as freedom, concerns only the existence of things so far as it is determinable in time, and, consequently, as phenomena, in opposition to their causality as things in themselves.
Kausalitatearen adigaia, natur beharrezkotasun gisa, askatasun gisa ez bezala, gauzen existentziari baino ez dagokio, hori denboran determina daitekeen heinean, eta ondorioz, agerpen gisa, berbaitango gauza gisa duten kausalitateari aurkakotuz.