[1] His books include Painless Civilization, which criticizes the incessant attempts to escape from pain and suffering in modern civilization, Confessions of a Frigid Man: A Philosopher's Journey into the Hidden Layers of Men's Sexuality, which illuminates some of the darker sides of male sexuality such as the "Lolita complex" and male frigidity, and Lessons in Love for Herbivore Men, one of the books that helped popularize the term "herbivore men".
[4] In graduate school he specialized in bioethics and environmental ethics, a newly emerging field at that time as well as Wittgenstein’s later philosophy.
He played an important role in the revision of the organ transplantation law in Japan in the years 2000–2009.
He asserted that organs should not be harvested from small children who have been declared brain dead but his proposal was ultimately rejected by the Diet.
He predicted that consciousness communication would play a central role in the coming information society, and put forward the concepts of "community of anonymity" and "dream navigator".
Morioka asserts that the most important aspect of life studies is never to detach ourselves from the problems we are tackling and never to think of ourselves as exceptions; He encourages us to keep our eyes on our own desires and the evil that he believes is deeply engraved in our hearts.
In the book Life Studies Approaches to Bioethics he describes this as "a sense of security that allows me to strongly believe that even if I had been unintelligent, ugly, or disabled, my existence in the world itself would have been equally welcomed, and whether I succeed or fail, and even if I become a doddering old man, my existence will continue to be welcomed".
He asserts that this civilization's limitless penchant for eliminating pain and suffering makes us completely lose sight of the meaning of life that is indispensable to human beings and deprives us of the joy of life in exchange for pleasure, pleasantness, and comfort.
He further claims that people in advanced countries know that they are drowning in the tide of their painless civilization but do not know how to escape from it.
Many Japanese adult males suffer from this condition and love to see the images of young girls in the mass media and on the Internet.