The case of "I" vs "we" in inspirational rhetoric

The most memorable speeches are observations about the world at large, and remarks that unify, not observations about the speaker and his or her accomplishments and goals. To identify a speech given at a higher level, one that is not self-centered, simply count the number of times the word “I” is used vs. the number of times “we” occurs.
http://www.socializedpr.com/i-vs-we-in-presidential-rhetoric/