This paper examines philosophical elements found in Abu Hamid al-Ghazali’s the Revival of the Religious Sciences (Ihya ulum al-din). This work is the most read Islamic text in the Muslim world after the Quran and the hadith, but scholars have often regarded it as an unphilosophical work. Al-Ghazali has been considered as an opponent of philosophy who vehemently attacked it in the Incoherence of the Philosophers (Tahafut al-falasifa). I argue, however, that the Revival contains a significant amount of philosophical elements, especially those that are in line with the Aristotelian tradition. In his recent book, the First Islamic Reviver, Kenneth Garden claims that the Revival is more philosophical than it has been assumed, and I advance his project through providing more details of the Revival’s philosophical elements. In doing so, I compare al-Ghazali with Aristotle and demonstrate where the former continues to use philosophical reasoning. Al-Ghazali’s discussion on the importance of knowledge in the pursuit of happiness is, for example, modeled after the ethical theory of Aristotle found in Nicomachean Ethics; both argue that a good life requires knowledge. The connection between the knowledge of God and human perfection that al-Ghazali makes is also derived from Aristotle’s discussion on the divine in Nicomachean Ethics as well as Metaphysics although it needs to be pointed out that the meaning of the divine for Aristotle is different from that of God for al-Ghazali. The main books of the Revival that I use in this paper are Book 1, the Book of Knowledge (Kitab al-Ilm) and Book 21, the Marvels of the Heart (Kitab sharh ajaib al-qalb).