[4] In the early 1960s he was involved in the establishment of the Thinkers Club (Turkish: Aydınlar Kulübü) of which ideology was a synthesis of Turkism and Islamism.
[5][6] The other major members of the group included Arif Nihat Asya, Kemal Ilıcak, Tarık Buğra and Ali Fuat Başgil.
[7][8] During his second term the association developed a new approach called Turkish–Islamic synthesis which shaped the Turkish right-wing politics for a long time.
[11] He published articles in various newspapers and magazines, including Büyük Doğu (1956–1959, 1972), Yeni İstiklal (1962–1963), Kök (1981–1982), Boğaziçi (1984–1986), Ortadoğu (1974) and Tercüman (1976–1988).
[11] He also published a book entitled Aydınlar Ocağı ve Türk-İslâm sentezi (Turkish: Intellectuals' Hearth and Turkish–Islamic synthesis) in 1988.
[13] Yalçın was also influential in the formation of the intellectual background of nationalist governments just before the coup through Aydınlar Ocağı which he headed.