Consume the egotistical veils with the fire of oneness, sincerely for the sake of God.

Bahá’u’lláh, Bahá’í Scriptures, p. 134

O people of the world!  Follow not the promptings of the self, for it summoneth insistently to wickedness and lust; follow, rather, Him Who is the Possessor of all created things, Who iddeth you to show forth piety, and manifest the fear of God. He, verily, is independent of all His creatures.

Bahá’u’lláh, The Kitab-i-Aqdas, p. 41

We have repeatedly revealed similar utterances, but they have not profited the heedless ones, for they are found to be captives to egotism and lust. Ask thou God to enable all of them to repent and return. As long as the ego is subject to carnal desires, sin and error continue. It is hoped that the hand of the Divine mercy, and the blessings of the compassionate One may assist them all, and adorn them with the garment of forgiveness and favor; and that He may also guard them from that which impairs His Cause among His servants. Verily, He is the powerful, the mighty, and He is the forgiving, the merciful!

Bahá’u’lláh, Bahá’í World Faith, p. 184

Would it profit you in the least if, as ye fondly imagine, your names were to endure? Nay, by the Lord of all worlds! … Should your names fade from every mortal mind, and yet God be well pleased with you, ye will indeed be numbered among the treasures of His name, the Most Hidden.

Bahá’u’lláh, The Summons of the Lord of Hosts, p. 47

. . . they do not know the subtlety of the ego of man. It is the Tempter (the subtle serpent of the mind), and the poor soul not entirely emancipated from its suggestions is deceived until entirely severed from all save God.

‘Abdu’l-Bahá, Bahá’í Scriptures, p. 487

A man may converse with the ego within him saying: "May I do this? Would it be advisable for me to do this work?" Such as this is conversation with the higher self.'

‘Abdu’l-Bahá, Paris Talks, p. 179