human beings existed always

It is very clear herein that as soon as we speak of hearing, there must be a speaker; without a speaker there is no question of hearing. Therefore the Vedic knowledge, which is known as sruti, or that which is received by hearing, is also called apaurusa. Apaurusa means "not spoken by any person materially created." It is stated in the beginning of Srimad-Bhagavatam, tene brahma hrda. The sound of Brahman, or Veda, was first impregnated in the heart of Brahma, the original learned man (adi-kavaye). How did he become learned? Whenever there is learning, there must be a speaker and the process of hearing. But Brahma was the first created being. Who spoke to him? Since no one was there, who was the spiritual master to give knowledge? He was the only living creature; therefore the Vedic knowledge was imparted within his heart by the Supreme Personality of Godhead, who is seated within everyone as Paramatma. Vedic knowledge is understood to be spoken by the Supreme Lord, and therefore it is free from the defects of material understanding. Material understanding is defective. If we hear something from a conditioned soul, it is full of defects. All material and mundane information is tainted by illusion, error, cheating and imperfection of the senses. Because Vedic knowledge was imparted by the Supreme Lord, who is transcendental to material creation, it is perfect. If we receive that Vedic knowledge from Brahma in disciplic succession, then we receive perfect knowledge. (More...)

The theory of the asuras is that the living entities are born of material nature, or prakrti, in touch with the purusa. This theory also cannot be accepted because both the material nature and the Supreme Personality of Godhead are eternally existing. Neither the material nature nor the Supreme Personality of Godhead can be born. The Supreme Lord is known as aja, or unborn. Similarly, the material nature is also called aja. Both these terms, aja and aja, mean unborn. Because both the material nature and the Supreme Lord are unborn, it is not possible that they can beget the living entities. As water in contact with air sometimes presents innumerable bubbles, so a combination of material nature and the Supreme Person causes the appearence of the living entities within this material world. As bubbles in the water appear in different shapes, similarly the living entities also appear in the material world in different shapes and conditions, influenced by the modes of material nature. As such, it is not improper to conclude that the living entities appearing within this material world in different shapes, such as human beings, demigods, animals, birds, beasts, etc., all get their respective bodies due to different desires. No one can say when such desires were awakened in them, and therefore it is said, anadi-karma: the cause of such material existence is untraceable. No one knows when material life began, but it is a fact that it does have a point of beginning because originally every living entity is a spiritual spark. As sparks falling onto the ground from a fire have a beginning, similarly the living entities coming to this material world have a beginning, but no one can say when. Even during the time of dissolution, these living entities remain merged in the spiritual existence of the Lord, as if in deep sleep, but their original desires to lord it over the material nature do not subside. Again, when there is cosmic manifestation, they come out to fulfill the same desires, and therefore they appear in different species of life. (More...)

Prabhupada: The whole thing is that Dr. Frog, famous story. He comes to this conclusion, Dr. Frog's understanding. He has studied the three-feet-wide well, and he says he is satisfied with that. He has nothing to do with the Atlantic Ocean. But Atlantic Ocean is also a reservoir of water, and that well is also a reservoir of water. But [there is a] vast difference. So we take knowledge of who has created Atlantic Ocean. Therefore our knowledge is perfect. What do you say? (More...)

Syamasundara: But the point is that they have determined that there are rock structures in the earth very, very, very, very old and that these contain no evidence of any complex forms of life. So that if there is a statement that there were higher forms of life millions of years ago existing on this planet, there has been no evidence ever found of that. (More...)