Coolidge doesn't exactly open his speech with a bang. But he does open it with a summary of what he's about to say for the rest of the speech, like the thesis paragraph we were all taught to write in middle school:

No one can contemplate current conditions without finding much that is satisfying and still more that is encouraging. Our own country is leading the world in the general readjustment to the results of the great conflict. Many of its burdens will bear heavily upon us for years, and the secondary and indirect effects we must expect to experience for some time. But we are beginning to comprehend more definitely what course should be pursued, what remedies ought to be applied, what actions should be taken for our deliverance, and are clearly manifesting a determined will faithfully and conscientiously to adopt these methods of relief. Already we have sufficiently rearranged our domestic affairs so that confidence has returned, business has revived, and we appear to be entering an era of prosperity which is gradually reaching into every part of the nation. Realizing that we cannot live unto ourselves alone, we have contributed of our resources and our counsel to the relief of the suffering and the settlement of the disputes among the European nations. Because of what America is and what America has done, a firmer courage, a higher hope, inspires the heart of all humanity (1.1-7).

It may not grab your attention the way that some other famous speeches do right off the bat, but Coolidge's opening lines tell you what he's going to talk about. It's like the trailer for a movie, which ideally makes you want to see that movie. Plus, he sets up a pretty positive, optimistic tone, so the people listening feel like they can expect good news.