Dr. Singh. The scientists have no information that there is evolution up or down from the human platform.
Srila Prabhupäda. Therefore I say they are rascals. They have no knowledge, yet they still claim to be scientists. Real science is in the Bhagavad-gitä, where Krsna says, yänti deva-vratä devän pitrin yänti pitri-vratäh (Bg. 9.25). This means that whatever one worships in this life will determine the type of body he gets in his next life. But if one worships Krsna, he ends the process of transmigration entirely. Yam präpya na nivartante tad dhäma: “When one goes to that supreme abode of Mine, he never returns [to this material world of birth and death].” (Bg. 8.21) Promotion to the spiritual world (samsiddhim paramäm) is the ultimate perfection of human life. Read Bhagavad-gitä; everything is there. But the scientists have no idea of this perfection; they do not even believe in the existence of the living entity apart from the gross body.