"[T]he Sermon on the Mount is a description of character and not a code of ethics or of morals. It is not to be regarded as a law- a kind of new ‘Ten Commandments’ or set of rules and regulations which are to be carried out by us-but rather as a description of what we Christians are meant to be" (D. Martin Lloyd-Jones, Studies in the Sermon on the Mount, Vol.1, [IVP, 1966], 23).
This is not how you should interpret the SOTM! This makes the strenuous commands of the SOTM more like ideals one can gaze at with awe, rather than seeing it as the manifesto for the new kingdom community that Jesus called his disciples to be. Disciples of Jesus are to be followers, not fans of his teachings. They are called to radical obedience not meditation on how good we might conceivably be one day.