Quotes: Crisis of Happiness (Srila Prabhupada)

(no peace of mind) Śrīmad-Bhāgavatam, 2.10.25, purport. “But such a wrong conception of life cannot give anyone the desired peace of mind, and thus in spite of all advancement in knowledge by use of the resources of nature, no one is happy in this material civilization.”

https://vedabase.io/en/library/sb/2/10/25/

(hedonism) Śrīmad-Bhāgavatam, 9.24.56, purport. “At the present time, in Kali-yuga, people are extremely sinful and bad (manda). They have no idea of spiritual life and are misusing the benefits of the human form to live like cats and dogs.”

https://vedabase.io/en/library/sb/9/24/56/

(madness and obsession) Transcendental Diary, Volume 3, chapter 3. “...like a madman. A madman, to again bring him to the normal life is very difficult task. You have got in your country so many institutions. So the whole world, anyone who is in this material world, he’s a madman. Piśācī pāile yena mati cchanna haya māyā-grasta-jīvera se bhāva udaya. When a man becomes ghostly haunted he talks all nonsense. Similarly, anyone who is within this material world, they are all madmen. And Kṛṣṇa consciousness movement means to cure them by this treatment. So if anyone accepts this treatment, then he can make progress very quickly. Just like any madman, if he is under proper treatment, there is hope of his being cured. But the modern education is to keep him madman. That is the defect of modern civilization. Therefore they cannot understand our philosophy. This Kṛṣṇa consciousness philosophy is very bona fide and most essential philosophy. Madman cannot understand, but that does not mean the process of treatment should be stopped. No. It must go on; it cannot be stopped.”