Knowledge of the eternal soul comes only through a qualified guru in disciplic succession, never through speculation.Listen — Srila Prabhupada Uvaca
Bhagavad-gītā 2.26 — November 30, 1972, Hyderabad 721130BG-HYDERABAD [58:30 Minutes] Bg-02.26_721130BG-HYDERABAD Prabhupāda: atha cainaṁ nitya-jātaṁ nityaṁ vā manyase mṛtam tathāpi tvaṁ mahā-bāho nainaṁ śocitum arhasi [Bg. 2.26] So this is the opinion of the modern scientists or the Buddha philosophy, that soul, there is nothing like soul separately, but by combination of matter, at a certain stage, the living symptoms are manifest. And as it is combination of several chemicals, so it is also finished as soon as the body is finished. There is no..., nothing as soul. That is their opinion.
So for argument's sake, Kṛṣṇa says, "If you think like that, that the body is all in all, by certain condition the material elements combine, and again it is finished..." So Arjuna was declining to fight. So the, for argument's sake, Kṛṣṇa says that "If you think like that, the body's everything, so it will be destroyed automatically, so why you are so much afraid?" Suppose I have combined some chemical and it is destroyed... Say, bottles of chemicals, some way or other, it is destroyed. So who laments for that?
You can purchase another bottle. That is simply for argument's sake. Actually, that is not the position. Now, if you think that the combination of chemicals can produce living force, then why don't you do it in the laboratory?
The chemicals are there. You can combine and just produce a small ant, moving. Then it is... Science means observation and experiment.
So if you simply observe, and cannot make any experiment, practical, so then that is not science; that is only theory. That is not possible. No scientist has ever made any living entity by combination of chemicals in the laboratory. Nobody can do that. [pause] jātasya hi dhruvo mṛtyur dhruvaṁ janma mṛtasya ca tasmād aparihārye 'rthe na tvaṁ śocitum arhasi [Bg. 2.27] Jātasya hi dhruvo mṛtyuḥ.
"It is a fact that by the cycle of birth and death, one who dies, he has to accept again another body. So why you are deviating from your duty?" The warfare of the kṣatriyas and the warfare at the present moment of the whimsical politicians, it is..., they are different. Formerly it was not democracy. Only the kṣatriyas would fight.
Especially the king, the royal order, they should come forward. Not that the politicians are sitting very comfortably at home, and poor people, they are given to fight in front of the enemy. No. That was not the system. The king must come forward.