As this Middle Path consists of eight divisions, it is referred to as the Noble Eightfold Path. Right Understanding is the knowledge of the Four Noble Truths. In other words it is the understanding of oneself as one really is. The keynote of Buddhism is this Right Understanding. Buddhism as such is based on knowledge and not on unreasonable belief.
Right thoughts are threefold.
They are the Thoughts of Renunciation - which are opposed to lustful desires. Benevolent Thoughts which are opposed to illwill, and Thoughts of Harmlessness which are opposed to cruelty. These tend to purify the mind. Right speech deals with refraining from falsehood, slandering, harsh words, and frivolous talks. Right Action deals with refraining from killing, stealing, and unchastity.