A biography for A.C. Bhaktivedanta Swami Prabhupadahasn’t been written yet.
“So it is our request that you try to study Bhagavad-gītā as it is. Don't try to distort it by your so-called education. Try to understand Kṛiṣṇa as He is saying. Then you will be benefited. Your life will be successful.”
“By studying Bhagavad-gītā, one can become a soul completely surrendered to the Supreme Lord and engage himself in pure devotional service. As the Lord takes charge, one becomes completely free from all kinds of materialistic endeavors.”
“To become free from sinful life, there is only simple method: if you surrender to Kṛṣṇa. That is the beginning of bhakti.”
“If by studying Bhagavad-gītā one decides to surrender to Kṛṣṇa, he is immediately freed from all sinful reactions.”