The Buddha said that he was enlightened only after he understood these Four Noble Truths. Right Thought, Right Speech, Right Action, Right Livelihood, Right Effort, Right Mindfulness and Right Concentration. Right Understanding means to know and understand the Four Noble Truths. Right Thought means to think three kinds of thoughts. Thoughts of renunciation or thoughts which do not have lustful desires.
Action deals with refraining from killing, stealing and sexual misconduct.
Right Livelihood deals with the five kinds of trade which should be avoided in order to lead a noble life. To prevent evil thoughts from arising. To try to continue good thoughts that have arisen 7. Right mindfulness is also fourfold. Right Concentration is one-pointedness of mind as developed in meditation.