The first was by Andrew Stanton (director of such films as WALL-E) speaking about his guidelines for storytelling. The opening joke is superbly told. He spoils the rest a tad by glancing at the monitor for help once too often.
The other is by
Phoebe Buffay Susan Cain, speaking about how society needs to make itself more comfortable for introverts. As an introvert, I agree, but not with all the reasons. There have been a few articles about introverts (especially the one by Jonathan Rauch linked to in this post) over the years which have already nailed the topic. The talk becomes too sentimental for my liking.