This year's Fortune Brainstorm Tech conference kicked off Monday in Aspen, Colo. Already, major figures like U.S. CTO Megan Smith, YouTube CEO Susan Wojcicki, and KKR's Henry Kravis have appeared on stage.
Here's some of our favorite tweets from speakers, attendees, and our own writers from Brainstorm Tech's first day.
KKR co-CEO Henry Kravis shared some advice for startups and especially the current crop of "unicorns" -- startups valued above $1 billon:
Megan Smith, the CTO of the U.S., talked about diversity and spreading the tech talent across the country given technology's growing importance:
Helen Greier, CEO of drone company CyPhy Works, shares some predictions:
Pinterest co-founder and CEO Ben Silbermann discusses his company's shift to mobile and what's it doing to keep up with the trend:
Though Pinterest is often seen as a digital pinboard or social network, here's how Silbermann views it:
Chicago Mayor Rahm Emanuel rise from a family of immigrants has helped shape his view of success:
Some amusing moments, starting with Kravis's reaction to rumors of Donald Trump's interest in him as a member of his would-be cabinet:
Fortune Assistant Managing Editor Adam Lashinsky opens his interview with Rahm and Ari Emanuel with an interesting question:
As the evening rolled on, so did a thunderstorm in Aspen -- something investor and Colorado resident Brad Feld is accustomed to:
And of course, it wasn't too early for surprise visitors -- of all kinds:
To tune into the action on the main Brainstorm Tech stage Tuesday, watch the livestream here.