The Four Noble Truths are the central tenets of Buddhism that were first taught by Buddha after he attained enlightenment. They are: 1) Life involves suffering, 2) Suffering is caused by craving and attachment to impermanent things, 3) Suffering can be eliminated, and 4) The Eightfold Path provides a way to eliminate suffering by cultivating right view, intention, speech, action, livelihood, effort, mindfulness, and concentration. Following this path can lead to the transcendent state of nirvana in which all suffering is overcome.