Tathā dehāntara-prāptiḥ (BG 2.13), because after giving us this body, we have to accept another body. So this is going on. And ignorance, without knowledge of self, we are being kept in ignorance. The so-called educational system, all over the world, there is no such education. They are kept in darkness and ignorance and still so much money is being spent, especially in the Western countries. They have got money, big, big high schools, but what is the production? All fools and rascals. That's all. Because they do not know. They have no idea what is self. And without this knowledge... Knowledge means self-realization, that "I am not this body; I am spirit soul." That is knowledge. And knowledge how to eat, how to sleep, how to defend, how to enjoy sex life, and volumes of books on this subject matter, these are not knowledge. They are known even by the cats and dogs. The cats and dogs never read Freud's philosophy, but they know how to enjoy sex life.
So this dog's philosophy will not help you, that "I have got this body, and how to enjoy the bodily sex life." This is dog philosophy. A dog knows all these things. Your philosophy should be how to refrain from sex life. That is knowledge. Tapo divyam (SB 5.5.1). Tapasya. This human life is meant for tapasya, to refrain from sense gratification. That is knowledge. Not that how to enjoy sex life or sense gratification. This is known to cats and dogs without any education, without any philosophy.