This article examines the Journal of Islamic Civilization (İslam Medeniyeti), a prominent Islamic periodical from Turkey during the 1960s and 1970s. It argues that science constituted a significant arena of contestation within Islam-based civilizationist discourse, and demonstrates how the journal critiqued Western modernity and Turkish modernization by underscoring the purported religious foundations of civilization and science. Advocating that scientific practice is a social process shaped by principles and values inherent to a given civilization, journal's contributors contended that Westernization in educational and scientific conduct resulted in an inability to sustain scientific and technological productivity, albeit without proposing substantial practical alternatives.