David Karp

I've found that if you're not responsive to e-mail, it trains people to leave you alone.

Where I feel the most productive and engaged is when I'm buried in code, buried in some project, tweaking some designs. I'm certainly introverted.

I'm very antischedule. Except for board meetings, I don't really schedule things or keep a calendar. I think appointments are caustic to creativity.

I am a big one for subtlety and empathy. My dad was softly spoken and didn't carry his honours and accomplishments for everyone to see.

If you have a block of ballistics gelatin and a high-speed camera, pretty soon somebody gets a gun!