A necessary research activity in each period is the revival of the works of thinkers and philosophers who have played an essential role in the history of the development and advancement of Islamic culture and teachings but have remained unknown to the world. Fakhr al-Dīn Samākī, known as Muḥaqqiq Fakhrī, is one of these philosophers who lived in the 10th century (AH). He was the student of Ghiyāth al-Dīn Manṣūr Dashtakī. He wrote some important works such as Glosses on Qūshchī’s Sharḥ-i tajrīd and Glosses on Maybudī’s Sharḥ al-hidāyah al-ḥikmah. Athīr al-Dīn Abharī’s Hidāyah al-ḥikmah consists of three chapters on logic, physics, and theology. Maybudī commented on its two chapters of physics and theology, and Samākī wrote glosses only on the first and second sections of the three sections of the chapter on physics of Maybudī’s Sharḥ al-hidāyah al-ḥikmah. Unlike Ibn Sīnā and Suhrawardī, Samākī did not found a specific school of philosophy; however, he managed to play a significant role as a mediator in the development of philosophical thought in general and turn into a source of inspiration for Mullā Ṣadrā in developing his Transcendent Philosophy. He did so through presenting some accurate critiques, conducting thorough investigations, and expressing specific and innovative views regarding certain topics discussed by mutikallimūn, Peripatetic philosophers, Illuminationists, and gnostics within the framework of some of his dependent and independent (commentaries and glosses) works. Among such views, reference can be made to his different interpretation of sollemī (stepwise) argument and the development of three new arguments on demonstrating the finitude of things, which have been discussed in this paper.