One should give more stress on the spiritual side, because that is the active principle. So that is called knowledge. A man is to be understood in knowledge when he is giving, I mean to say, importance to the spiritual side. He is called jñānī. Otherwise they are fools. So jñānam. Jñānam means cid-acid-vastu-vivecanam, to understand what is matter and spirit.
So, a civilized, real, advanced civilization, the Āryans . . . the Āryans are called advanced. The actual meaning of Āryan means advanced, according to Sanskrit. This is a . . . Āryan is not any, I mean to say, English word or Hebrew or any other language. It is the Sanskrit word, ārya. Ārya. The word comes from the ārya, a-r-y-a, ārya.
Now, it has become a common word, Āryan, but originally it is Sanskrit word. And ārya means one who is advanced, or one who is civilized, one who knows, one who has knowledge. Then he is called ārya. In the Bhagavad-gītā you'll find, when Arjuna declined to fight, Kṛṣṇa condemned him, "Oh, you are just like talking like a non-Āryan, not Āryan."
So we all belong to the Āryan family. Historical reference is there, Indo-European family. So Āryan stock was in the central Asia. Some of them migrated to India, some of them migrated to Europe. And from Europe you have come. So we belong to the Āryan family, but we have lost our knowledge. So we have become non-Āryan practically, because we do not give importance to the spiritual side of life. The Āryan means one who gives importance to the spiritual side of life.
And what is that importance? The spiritual side importance-giving means one has to see how much important this human life is. Because in the human form of life the spirit soul, although it is conditioned by material, I mean to say, encagement, it has developed it's consciousness by gradual evolution. This evolution theory is there in the Padma-Purāṇa. There is actually evolution from lower, I mean to say, status of life beginning from the aquatics, small, then, I mean to say, plant life, then germs' life, then birds' life, then beast life, then, I mean to say, human form of life, then civilized human form of life.
So fortunately, we have got now civilized form of life. The Āryan family means they are civilized form of life. But we are utilizing in the matter of maintaining this body. Āhāra-nidrā-bhaya-maithunaṁ ca (Hitopadeśa 25). We are utilizing this material . . . this developed body. The spirit has . . . the spirit soul has got the chance now to liberate himself. There is a process. By nature's way, the evolution is to give chance the spirit to get out of this spiritual . . . attachment . . . material . . . material entanglement. The people are not giving importance. Therefore sometimes we find there is overpopulation.
Overpopulation. What is this overpopulation? Overpopulation means that just like from lower class a student is promoted, and when he comes to the I mean, final class, if he does not pass, then the class is overcrowded. Suppose from one, two, three, four, one comes to the tenth class. Tenth class is meant for final examination and go to the college. So if in the tenth class the students fail, then the tenth class becomes populated . . . er, overpopulated. Similarly, the present civilization we sometimes find that there is overpopulation. Overpopulation means we are not being promoted to higher life. We are being blocked, and therefore nature's course is there must be some pestilence, there must be some war to finish this.