Facebook co-founder Mark Zuckerberg announced Tuesday he is a dad and pledged to give away his fortune to make the world a “better place” for baby daughter Maxima and others.

In a letter to Maxima posted on his Facebook page, Zuckerberg and wife Priscilla Chan said they were going to give away 99 percent of their company shares — estimated value $45 billion — during their lives in an effort to make a happy and healthy world.

“Max, we love you and feel a great responsibility to leave the world a better place for you and all children. We wish you a life filled with the same love, hope and joy you give us. We can’t wait to see what you bring to this world,” the letter said.

Credit: AP