For those who have studied book 6 in the Institute Courses, have seen the suggested outline of presenting the Bahai Faith. The first section of that outline, introduces the fundamentals of the Bahai Faith. In this compilation, I have put together quotes from the Bahai Writings on these fundamentals of the Bahai Faith such as the Unknowable Essence of God, The Manifestations of God, Progressive Revelation and so on. I hope it will be of use for you. You can find the compilation here Fundamental Verities of Bahai Faith