What are the principles of the Sufism?

In "The Way of Illumination", Inayat Khan writes of ten principle Sufi thoughts that are the fundamentals of Universal Sufism:

8. There is One Object of Praise, the Beauty which uplifts the heart of its worshiper through all aspects from the seen to the unseen
10. There is One Path, the annihilation of the false ego in the real, which raises the mortal to immortality, in which resides all perfection" (Sufi Message).