Problem: Bodhisattva and Buddha are enlightened beings in Buddhism. Yet in early Buddhism and in Mahayana Buddhism, they have different implications. Please briefly explain their differences in early Buddhism and in Mahayana tradition. 2. The Middle Way is a very crucial concept in Buddhist thought. Please explain its evolution from early Buddhism to Mahayana Buddhism. You can connect it with Buddhist understanding of suffering, life, self, and impermanence, as well as emptiness.