Why did Robert Adam decide to study ancient buildings in Rome?

Robert Adam traveled to Rome with the primary goal of advancing his architectural expertise by studying the monuments of antiquity. He was driven by a desire to have his ideas "greatly enlarged" and his taste "formed upon the solid foundation of genuine antiquity."1

While in Italy, Adam sought to move beyond mere social pursuits to focus on serious study. He collaborated with the French architect Charles-Louis Clérisseau, who served as his instructor and antiquarian, helping him refine his perspective and drawing skills. Adam’s commitment to this study was so profound that he eventually prioritized his architectural education over his social standing among the "great" in Rome, choosing to dedicate his time to visiting, sketching, and measuring ancient ruins.1

Ultimately, Adam believed that his knowledge of architecture would remain imperfect unless he could supplement his study of public works with the observation of private ancient edifices, a conviction that later led him to visit the ruins of Diocletian’s palace in Dalmatia.1