If you have this faith that the soul is the eternal servant of Krsna then you will have no more misery and when you chant the holy name of Krsna, your body will shiver in ecstasy and your eyes will shed tears in love of God.

Srila Bhaktivinoda Thakura

If somehow or other by good fortune one develops faith in hearing and chanting My glories, such a person, being neither very disgusted with nor attached to material life, should achieve perfection through the path of loving devotion to Me.

Lord Sri Krsna
Srimad-Bhagavatam 11.20.8

Even a liberated soul merged in the impersonal Brahman effulgence is attracted to the pastimes of Krsna. He thus installs a deity and renders the Lord service.

Sri Sankaracarya
Commentary on Nrsimha-tapani Upanisad

The Vedic literatures composed by the omniscient Mahamuni Vyasadeva are evidence of all spiritual existence. Only through these revealed scriptures can all conditioned souls attain knowledge.

Sri Caitanya Mahaprabhu
Sri Caitanya-caritamrta, Madhya 20.353

Because of His great handsomeness, sweetness, charm, and opulence, because of the musical sound of His flute, because He is filled with love, and because of His host of friends and relatives, great poets and philosophers say that Lord Krsna, the son of Maharaja Nanda, is the original Supreme Personality of Godhead.

Srila Baladeva Vidyabhusana
Sri Aisvarya-kadambini 1.10

To the extent the heart is polluted with sins, it cannot place its faith in the Vedic scriptures or the bona fide spiritual master. By hearing the Vedic scriptures in the association of saintly devotees, love for the Lord is manifest. That is the great result of having performed many pious deeds in many previous births.

Brahma-vaivarta Purana
Quoted in Bhakti-sandarbha (1.5-6)

Not knowing the real value of life, people think that the material body and the land where it is produced are all in all. This is the basic principle behind nationalism, socialism, and communism. Such thinking, which simply bewilders the living entity, is nothing but rascalism. It is due to the darkness of maya, but as soon as one becomes Krsna conscious, he is immediately relieved from such misconceptions.

His Divine Grace A. C. Bhaktivedanta Swami Prabhupada
Sri Caitanya-caritamrta, Madhya 22.32, Purport