You have to accept knowledge from the authority. Therefore Vedic system has rejected the Cārvāka Muni. He has no authority. He is authority himself. He says that there is no life, but what is the proof? But there are many proofs that there is next life. So who will accept Cārvāka Muni's theory? Nobody. No sane man will accept.
And suppose if there is life. There are two philosophers: one says that there is no life, other says there is life. Now we have to study both, if there is life and if there is no life. But if there is life, the next answer to Cārvāka theory, if there is life, then if I'm working irresponsibly, then I am becoming victim to my next life. So there are . . . but we have to take from the authority.
Just like the Bhagavad-gītā says that na jāyate na mriyate vā kadācin: "The soul is never born and never dies." Na hanyate hanyamāne śarīre (BG 2.20): "Even after the annihilation of this body there is no destruction of the soul." And soul is migrating in different species of life. So we have to take Kṛṣṇa the authority, Veda-Vyāsa the authority. There are many such authorities. So there is next life. There is no doubt. The practical proof there is . . . and Kṛṣṇa has given many proof. I have spoken in this meeting many times. There is next life.
So we should be responsible. This human form of life should not be wasted simply for sense gratification. That sense gratification facility is in every . . . even in the cats and dogs, there is that facility. By nature it is already arranged. But the special qualification of this human form of life is to know himself, and to try to understand that, "Why I am in miserable condition? Where from I have come? Where I have to go? What is God? What is this world?" This is called Vedānta. Vedānta means to understand all these things.
So Veda means knowledge, and anta means the last stage of understanding. So last stage of understanding is Śrīmad-Bhāgavatam or Vedānta. So our request . . . our Kṛṣṇa consciousness movement is that we are requesting everyone that you do not spoil your life in pursuit of sense gratification like animals, but think that this life is very responsible life.