Prabhupāda: Try to understand this, that life is always there, as God is there. So these living entities, part and parcel of God, they are also there. That God has got multi-energies, potencies. Out of that, three potencies have been taken as very important. Parāsya śaktir vividhaiva śrūyate (CC Madhya 13.65, purport). God has multi-energy. Out of that, three energies have been taken as principal: material, spiritual and marginal. The material energy is this material world. The spiritual world is the spiritual energy. And we living entities, we are also spiritual, but we are called marginal because we may live under the subjugation of material energy or spiritual energy.
So the living entities, they are eternal. Their only position is marginal—sometimes manifested here, sometimes manifested there. So in the material world the living entities are already there. You haven't got to create. That is foolishness. It is never created. Simply in the material world it becomes manifest in four ways. Some of them are coming like trees, plants. And some of them are coming from perspiration. Not coming; being manifested through fermentation, perception. And some of them are being manifested through eggs. And some of them are being manifested through embryo. The living entities are already there. Their struggle is going on, and they become manifest in the material world in four sources. In the spiritual world there is no such. . . They are eternally existing. There is no question of manifestation.
So this is the science of living entities. What do they know? Therefore I say they are rascals. They do not know anything; simply trying to create. What is the creation? It is already there. But they do not know what is this, and still, they are scientists, they are advanced education. All rascal. They do not know. Therefore through Bhagavad-gītā we say they are rascal, mūḍhā. Now you tell these mūḍhas that "My dear sirs, you cannot create; neither it is created. You find out how they are coming out, what is their source, who is the brain behind all this nature. That you find out. That is knowledge. So if you struggle for this and try to find out the original source of everything, then some day you may come to this platform, vāsudevaḥ sarvam iti sa mahātmā su-durlabhaḥ (BG 7.19). Then you understand that Kṛṣṇa is the source of everything, and then your knowledge will be perfect." This is the. . . Vāsudevaḥ sarvam iti (BG 7.19). Whatever we see, that is, the source is Vasudeva.