Siddhartha Gautama, also known as the Buddha, taught that the path to enlightenment and liberation from suffering is through the Four Noble Truths and the Eightfold Path. The Four Noble Truths are: 1) the truth of suffering, 2) the truth of the cause of suffering, 3) the truth of the cessation of suffering, and 4) the truth of the path leading to the cessation of suffering. The Eightfold Path is a set of principles and practices that include right understanding, right intention, right speech, right action, right livelihood, right effort, right mindfulness, and right concentration. These teachings are the foundation of Buddhism.