With a generation of younger folks who have thrived on the success of their companies, there is a big opportunity for many of us to give back earlier in our lifetime and see the impact of our philanthropic efforts.

In a world that's changing so quickly, you're guaranteed to fail if you don't take any risks.

If we want to have the biggest impact, the best way to do this is to make sure we always focus on solving the most important problems.

Providing the best photo sharing experience is one reason why so many people love Facebook and we knew it would be worth bringing these two companies together.

People have really gotten comfortable not only sharing more information and different kinds, but more openly and with more people - and that social norm is just something that has evolved over time.

If you're always under the pressure of real identity, I think that is somewhat of a burden.

The world isn't set up equally, and the first billion people using Facebook have way more money than the rest of the world combined.