Due to his (every living entity's) contact with material nature, these qualities (good qualities of Sri Krsna) are not visible in the conditioned soul, but when one becomes a purified devotee, they all automatically manifest themselves

Expressions researched:
"Due to his contact with material nature, these qualities are not visible in the conditioned soul, but when one becomes a purified devotee, they all automatically manifest themselves"

Sri Caitanya-caritamrta

CC Adi-lila

Since every living entity is a part of the Supreme Personality of Godhead, all fifty of these good qualities of Śrī Kṛṣṇa are originally minutely present in every living being. Due to his contact with material nature, these qualities are not visible in the conditioned soul, but when one becomes a purified devotee, they all automatically manifest themselves.

CC Adi 8.57, Translation and Purport

The fifty qualities of Lord Kṛṣṇa were all present in his body.

In the Bhakti-rasāmṛta-sindhu, the transcendental qualities of Śrī Kṛṣṇa are mentioned. Among these, fifty are primary (ayaṁ netā su-ramyāṅgaḥ, etc.), and in minute quantity they were all present in the body of Śrī Haridāsa Paṇḍita. Since every living entity is a part of the Supreme Personality of Godhead, all fifty of these good qualities of Śrī Kṛṣṇa are originally minutely present in every living being. Due to his contact with material nature, these qualities are not visible in the conditioned soul, but when one becomes a purified devotee, they all automatically manifest themselves. This is stated in Śrīmad-Bhāgavatam (SB 5.18.12), as mentioned in the text below.