Jimmy Carter
Here's the text of his speech. Certainly not as stirring as Al Gore's was. But a bit more bite to it.
In repudiating extremism we need to recommit ourselves to a few common-sense principles that should transcend partisan differences. First, we cannot enhance our own security if we place in jeopardy what is most precious to us, namely, the centrality of human rights in our daily lives and in global affairs. Second, we cannot maintain our historic self-confidence as a people if we generate public panic. Third, we cannot do our duty as citizens and patriots if we pursue an agenda that polarizes and divides our country. Next, we cannot be true to ourselves if we mistreat others. And finally, in the world at large we cannot lead if our leaders mislead.
You can't be a war president one day and claim to be a peace president the next, depending on the latest political polls. When our national security requires military action, John Kerry has already proven in Vietnam that he will not hesitate to act. And as a proven defender of our national security, John Kerry will strengthen the global alliance against terrorism while avoiding unnecessary wars.
*UPDATE* Apparently those on the Daily Kos message board feel the opposite way(It's an open thread, scroll down). I'll watch it again later on and see if I feel differently. The text is strong, but his delivery lacked something to me.