Droṇācārya, what Droṇācārya was speaking, how Duryodhana was replying, and so on. Even though these activities were too far away to be seen by ordinary eyes, Sañjaya could see and describe them through his mystic power. That is real science.
Dr. Singh.  Some scientists say that we have improved on nature by making things like plastic and medicine.
Śrīla Prabhupāda.  In Vedic times people ate on silver and golden plates, but now the scientists have improved things with plastic plates. [Laughter.]
Dr. Singh.  The plastic has become a great problem because they cannot get rid of it. There is no way to dispose of it. It just continues to pile up.
Here is the Prooffile of the Prooffile.
Dr. Wolf-Rottkay.  The materialists would be more sincere if they said, "We don't want to be taken out of our dream. We want to continue trying to enjoy our senses with all our machines." But they will not admit that their attempts to enjoy always fail.
Šrīla Prabhupāda . That is their foolishness. Eventually they have to admit it.
Dr. Wolf-Rottkay.  But they say, "Try, try again."
Śrīla Prabhupāda.  How can they try? Suppose you cannot see because you are suffering from cataracts. If you try to see-you try, try, try, try, try. Is that the cure for cataracts? No. You will never be cured like that. You must go to a physician, who will perform a surgical operation to restore your eyesight. You cannot see by trying and trying.
Dr. Wolf-Rottkay.  That is just what they do not want to accept-that all their efforts to know the truth by materialistic science have failed.
Śrīla Prabhupāda.  They are foolish. They will not take good advice. If you give a rascal some good advice, he will become angry, just like a serpent. Suppose you bring a serpent into your home and say, "My dear serpent, please live with me. Every day I will give you nice food-milk and bananas." The snake will be very pleased, but the result will be that its poison will increase, and one day you will say, "Ah!" [imitates a bitten person.]
Dr. Wolf-Rottkay.  But the scientists will never give up hope.
Śrīla Prabhupāda . Their plans are being frustrated at every moment, but still they are hoping.
Student.  Śrīla Prabhupāda, one librarian wanted me to prove that  Bhagavad-gītā  was five thousand years old. He wanted to see a copy that was written down five thousand years ago.
Śrīla Prabhupāda.  Suppose I go into a dark room and say to the person inside, "The sun has risen. Come out!" The person in darkness may say, "Where is the proof that there is light? First prove it to me; then I will come out." I may plead with him, "Please, please, just come out and see." But if he does not come out to see, he remains ignorant, waiting for proof. So, if you simply read  Bhagavad-gītā  you will see everything. Come and see. Here is the proof.