Rick Kern / Getty Images North America 1 / 12
Rick Kern / Getty Images North America 1 / 12

Is Matt Damon the world's best dad? If not, then he's certainly in the running!

The Oscar nominee and Water.org co-founder opened up about the way fatherhood has affected his philanthropic spirit during the Global Water Crisis Panel presented by Stella Artois as part of the 2016 Sundance Film Festival in Park City, Utah, on Jan. 23.

"When you start having kids, it's hard not to see other kids as your own," said the father of four girls when asked about his dedication to ending the global water crisis. (According to Water.org, 663 million people worldwide lack access to clean water.)

The star of "The Martian" went on to describe his early forays into philanthropy -- which were coordinated by U2 frontman Bono -- and how they impacted his desire to give back.

"The first trip that I went on was set up by Bono's organization about 10 years ago, and he kind of rightly assumed that if he just stuck me in the middle of an extreme situation and really put me in extreme poverty, my life would change -- and that's exactly what happened," he said.

"I had these interactions with these kids and with these people, and I saw that I could have an impact," he added. "It felt like it's incumbent on me to do whatever I can within my own sphere of influence to affect positive change for people. And [the global water crisis] was so massive and felt like there was so little awareness about it. It felt like the best place to put my time and energy.""

The actor is also deeply concerned with the legacy he'll leave his four daughters with wife Luciana: Isabella, 9, Gia, 7, Stella, 5, and 17-year-old stepdaughter Alexia.

"My wife and I have our kids, and all we think about for them is what world we're gonna leave them," said the "Bourne Identity" star. "What is our mark gonna be?"

"That's a really big question -- and it really is the only question," he added. "What are we here for and what are we going to do with our chance? What are we gonna do with this life?"

Apparently making blockbusters isn't the only thing on the "Good Will Hunting" scribe's to-do list.

"Being part of the generation that ends the global water crisis would be pretty damn cool," says Matt. "There's no doubt in our mind that we can absolutely end this crisis in our lifetime."

As part of their partnership with Water.org, Stella Artois is releasing a new set of limited edition chalices designed by artists from Haiti, Kenya and Peru. (The struggle to obtain clean water in each country is the subject matter of the inaugural film in the Stella Artois Documentary Program.) For each chalice sold in the United States, the beer brand will donate $6.25 to Water.org to help provide five years of clean water for one person in the developing world.

So go on, already: Buy a lady a drink!