Four noble truths of Buddha
Life is suffering
All suffering is caused by ignorance of the nature of reality and the craving, attachment and grasping that result from such ignorance.
Suffering can be ended by overcoming ignorance and attachment.
The path to the suppression of suffering is the noble eightfold path which consists of, right views, right intention, right speech, right action, right livelihood, right effort, right mindedness and right contemplation.