Prabhupāda: Real, everything is problem with this body. Everything is problem. Beginning from the birth of your this body, manufacturing of the body by father and mother, it is a problem. Therefore a serious man will always think how to get out of this problem, setting aside all other problems.
Tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9). How to get out of this material body. It is not that "This is small problem; this is big problem." The whole body, material body, acceptance of material body, is problem. The disease . . . yes.
Woman (4): But you have to accept the problems, because you have the body.
Prabhupāda: That's it, to make the best use of a bad bargain.
Woman (4): I wouldn't think so bad bargain. If you have a bad body, that's a bad body . . .
Prabhupāda: It is a bad bargain because there is four problems. Even if you are very rich, you have no economic problem, you've got everything, but you have to take birth, you have to die, you have to suffer from disease, you have to accept old age. These problems you cannot avoid. Either you are rich man or poor man or American or Indian or white or black, it doesn't matter. The problems, the four problems of material existence, will always trouble you. Nobody wishes to die, but he has to die. Nobody likes disease, but he has to suffer from disease.
So these are the problems. If you don't think they are not problems, then you are less intelligent. You have to become more intelligent. The animals, they don't care for death. Now, here is a slaughterhouse. Another animal is being killed, and this animal, little grass, oh, he is happy. He does not know that, "Next moment I am going to be killed." This is ignorance. Ignorance means animal life, and knowledge means human life. Therefore there is so much educational system in every human society. Why? Knowledge means human life, and ignorance means animal life.
So why should we be ignorant of these four problems, janma-mṛtyu-jarā-vyādhi-duḥkha-doṣānudarśanam (BG 13.9), the problems of birth, death, old age and disease?
Why you set aside these problems and think you are happy? That is animal life. They don't care for the problems, and eating grass. That is animal life.