So as Śrīman Janārdana said, the knowledge which you are searching in different ways, that is impossible to come to the conclusion. Because we are searching with . . . however I may accept this method or that method or that method, but accepting the method means employing my senses. But the senses are imperfect. Either I accept this or that, I have to work with my senses. There are no other instruments. So when senses are imperfect, so whatever method you accept, that will be imperfect.
Then which method will be perfect? That method will be perfect, as it is stated in the Bhagavad-gītā, mattaḥ smṛtir jṣānam apohanaṁ ca (BG 15.15). When Kṛṣṇa from within yourself will give you right direction, then you'll come to the ultimate destination. Otherwise, whatever . . . however a great philosopher, scientist or anything you may be, you'll simply hover on the material, mental plane. That's all.
So either you call perfect knowledge or you call happiness, anything, what you call, if you want to know the ultimate goal of your life perfectly, you have to follow a different method. A different method. That method is called avaroha-panthā. There are . . . all methods of acquiring knowledge can be divided into two groups. One group is called āroha-panthā, or research, inductive process, and another method is called deductive process, or avaroha-panthā. The knowledge coming from the supreme source, that is called avaroha-panthā, and the knowledge which is being sought after by using our imperfect senses, that is called āroha-panthā. Ascending process and descending process.