Srila Prabhupada many times gave an example to disprove Darwin’s theory; if life comes from chemicals then why is it that in state laws all over the world a murderer is hanged while a thief is just arrested? He used many such examples to show that by common sense it can be proved that life comes from life and not chemicals. Another example he often used was that in every language, when a man dies, it is said that he has gone away. This is common sense shared by everyone, that something living has left the dead body. When I was new in devotional service (for some years) whenever I used to read these statements from Srila Prabhupada’s books I used to think that how is it that Srila Prabhupada is trying to make a point about something using common sense? This is because the idea of using commons sense can be defective (unreliable). This is because what I perceive by common sense is not necessarily correct. Someone may say that; according to my common sense life comes from matter.
Later I came to understand (by mercy) something very interesting. Scientists say that life comes from chemicals, but for that they neither have any observational nor experimental support that conclusively proves this fact. In such circumstances, even according to modern scientific methods, priority should be given to knowledge gained by common sense. Otherwise anyone can come and say anything according to their imagination. In any society laws should be based on accurate knowledge and thus unless proof is available, common practices followed for centuries cannot be changed.
So in this case, Srila Prabhupada is exposing the scientists’ cheating in establishing Darwin’s theory without proof, and then he establishes the point that people’s common sense says that life is different from matter. So in society, the soul’s existence should be accepted. We see that Srila Prabhupada would always attack scientists by saying “can bring a dead body back to life?” or “at least create a mosquito in your laboratory” and then when they reply that “we will be able to do it in the future” then Prabhupāda would say “this is rascaldom. Trust no future however pleasant”. This is exactly the point – Srila Prabhupada means that “you are establishing something in the society without having any support for it and when asked for the proof you say that we will do it in future. This is cheating. First you have to prove something, and then you can establish it.”