Mark Zuckerberg is known for his long-term vision for Facebook, and for bringing the Internet to billons of people around the world who are unconnected.

The 29-year-old CEO of Facebook Inc. touched on both of those missions, in an on-stage interview at the Mobile World Congress in Barcelona, Spain today.

Zuckerberg said his company’s $19 billion acquisition of mobile messaging service WhatsApp will allow the startup to focus on growing its user base, and not on making money, over the next five years.

With 465 million monthly members, Zuckerberg believes WhatsApp is on track to reach a billion users.

Zuckerberg spent most of his time discussing Internet.org, the ambitious project by Facebook and a slew of partners that aims to get everyone in the world online.