Picture Quotes, Srimad Bhagavatam
The manifestation of unadulterated devotional service is exhibited when one’s mind is at once attracted to hearing the transcendental name and qualities of the Supreme Personality of Godhead, who is residing in everyone’s heart.
Srimad Bhagavatam 3.29.11-12,
Srila Prabhupada
A.C. Bhaktivedanta Swami Prabhupada, Picture Quotes
One should not be idle but should be very enthusiastic about executing the regulative principles. Neglect of the regulative principles will destroy devotional service. In this Krishna consciousness movement there are four basic regulative principles, forbidding illicit sex, meat-eating, gambling and intoxication. A devotee must be very enthusiastic about following these principles. If he becomes slack in following any of them, his progress will certainly be checked. — The Nectar of instruction, Text 03.
A.C. Bhaktivedanta Swami Prabhupada, Picture Quotes
Scientist display their intellectual energy & deny the existence of Supreme Energy…. but devotees worship Krishna as the greatest Scientist.