Non-perception (of Nature) is because of subtlety,
not because of non-existence,
since it (Nature) is perceived through its effects.
These effects are intelligence and the rest.
Some are similar to Nature and some dissimilar.
– Sāṃkhya Kārikā of Īśvara Kṛṣṇa Āryā Eight

Comment from Gaudapādācarya Bhāṣya:
Even in the world, a son is similar as well as dissimilar to his father.
The causes of similarity and dissimilarity we shall explain later.