A lot of what I experienced growing up in the U.S.S.R. and coming to the U.S. as an immigrant actually reflects itself in Whatsapp. Experiences from our youth shape what we do later in life.

Advertising isn't just the disruption of aesthetics, the insults to your intelligence and the interruption of your train of thought. At every company that sells ads, a significant portion of their engineering team spends their day tuning data mining, writing better code to collect all your personal data.

As long as our user base continues to grow, at some point it will have critical mass, and at some point it will tip, and at some point, people will just have to use WhatsApp because their friends are using WhatsApp.

I had so much fun in early days learning about networking, security, scalability and other geeky stuff.

Between 1776 and 1789, Americans replaced a government over them with a government under them. They have worried ever since about keeping it under. Distrust of its powers has been more common and more visible than distrust of the imperial authority of England ever was before the Revolution.

The Nuremberg trials of Nazi leaders, in open court before an international tribunal, had a profound long-term effect in bringing Germans back to democracy and humanity.

If there's unemployment, having the government help reduce that unemployment, increase employment directly is a pretty good idea. It's not driving out competition; it's not crowding out.

The only way people are going to change their car buying habits, and the only way government will get behind alternatively fueled vehicles, is if gasoline prices continue to go up.