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THE SCIENCE OF SELF-REALIZATION
and I say, "Yes, I will pay you the entire sum with this postdated check. Is that all right?" If you are intelligent, you will reply, "At present, give me at least five dollars in cash so I can see something tangible." Similarly, the scientists cannot produce even a single blade of grass by biochemistry, yet still they claim that life is produced from matter. What is this nonsense? Is no one questioning this? We can prove that life began from life. Here is the proof: when a father begets a child, the father is living, and the child is living. But where is the scientist's proof that life comes from matter? We can prove that life begins from life, and we can also prove that the original life is Kṛṣṇa. But what evidence exists that a child is ever born out of a dead stone? The scientists cannot prove that life comes from matter. They are leaving that aside for the future.
Karandhara dāsa:  The basis of what the scientists call "scientific integrity" is that they talk only about what they can experience through their senses.
Śrīla Prabhupāda:  Then they are suffering from what we call "Doctor Frog's philosophy." There was once a frog who had lived all his life in a well. One day a friend visited him and informed him of the existence of the Atlantic Ocean.
"Oh, what is this Atlantic Ocean?" asked the frog in the well.
"It is a vast body of water," his friend replied.
"How vast? Is it double the size of this well?"
"Oh, no, much larger," his friend replied.
"How much larger? Ten times the size?"
In this way the frog went on calculating. But what was the possibility of his ever understanding the depths and far reaches of the great ocean? Our faculties, experience, and powers of speculation are always limited. The frog was always thinking in terms relative to his well. He had no power to think otherwise. Similarly, the scientists are estimating the Absolute Truth, the cause of all causes, with their imperfect senses and minds, and thus they are bound to be bewildered. The essential fault of the so-called scientists is that they have adopted the inductive process to arrive at their conclusions. For example, if a scientist wants to determine whether or not man is mortal by the inductive process, he must study every man to try to discover if some or one of them may be immortal. The scientist says, "I cannot accept the proposition that all men are mortal. There may be some men who are immortal. I have not yet seen every man. Therefore how can I accept that man is mortal?" This is called the inductive process. And the deductive process means that your father, your teacher, or your guru says that man is mortal, and you accept it.