If you aren't familiar with Apple CEO Tim Cook, he is usually the guy bringing joy to the world with new gadgets and gizmos.
However, Cook was inspired by one particular MLK quote to bring joy and peace to the world in a different way.
As Tim Cook explained in his interview on "The Late Show With Stephen Colbert," he recently decided to come out as gay because of a Martin Luther King quote he thought of everyday:
"Life's most persistent and urgent question is what are you doing for others."
Growing up in Alabama, Cook knew of the bullying and discrimination kids faced from others, including their own parents.
Therefore, he felt the need to do something even though he greatly valued his privacy.
As Cook explained to Colbert, he "was valuing it too far above" what he could do for others in his situation.
He continued to say, "I wanted to tell everyone my truth."
While many people had a good idea that he was gay, he likened it to discovering a feature on your iPhone you didn't quite know was there.
So even though his immediate circle was aware, it was important for the world to know as well.
You can watch the full interview below.