I love the sermon. I appreciate it as a form of oratory and as an opportunity to grapple with challenging ideas which you might not think of everyday. A good sermon, just like a good lecture, can stretch our minds, open our hearts, and rouse us to action.
This one, by Unitarian minister Rev. Marlin Lavanhar (chief minister of All Souls Unitarian Church in Tulsa, OK), is an exquisite introduction to the intellectual roots and core concerns of Humanism, composed and delivered with great skill, and I recommend it highly.