Matt Damon, Ben Affleck, Whoopi Goldberg, Pay Tribute to Robin Williams

PHOTO: Robin Williams teaching a class in a scene from the film "Dead Poets Society," 1989.PlayGetty Images
WATCH The World Reacts to Robin Williams' Death

Relatives, friends and celebrities ignited social media with reactions to the death of beloved actor Robin Williams, who died Monday at 63 years old.

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Recently, Ben Affleck, Williams' co-star from "Good Will Hunting" opened up about his "friend."

"Heartbroken. Thanks chief -- for your friendship and for what you gave the world. Robin had a ton of love in him. He personally did so much for so many people. He made Matt and my dreams come true," Affleck wrote on Facebook, referring to his "Good Will Hunting" co-star Matt Damon. "What do you owe a guy who does that? Everything. May you find peace my friend. #RobinWilliams," he added.

Damon also released a comment on the passing of his former co-star. "Robin brought so much joy into my life and I will carry that joy with me forever," he said. "He was such a beautiful man. I was lucky to know him and I will never, ever forget him."

Nathan Lane, Williams' "Bird Cage" co-star, added similar sentiments about the late actor.

"I feel I have to say something more than just 'heartbreaking and shocking' which everyone has said and I feel as well, but something a little more personal. Thus the following: One day in 1995 while riffing in the character of a snobby French toy store owner, Robin made me laugh so hard and so long that I cried," he said in a statement. "It seemed to please him no end. Yesterday I cried again at the thought that he was gone."

He added, "What I will always remember about Robin, perhaps even more than his comic genius, extraordinary talent, and astounding intellect, was his huge heart -- his tremendous kindness, generosity, and compassion as an acting partner, colleague, and fellow traveler in a difficult world. My heartfelt condolences to his wife and family."

His longtime friend, Whoopi Goldberg, tweeted, "BillyCrystal is right ... There are No words."

Glenn Close, his co-star in "The World According to Garp," called Williams a friend, and more.

"Robin was a world treasure," she wrote. "As we mourn his tragic death, we must remember him for the great waves of laughter that he was able to [e]llicit from us, how his humor and insights -- though they came from a place of pain and uncertainty -- connected us and reminded us of how flawed and fragile ... how human we are ... how we are capable of moments of inspired transcendence and others of unspeakable despair.

"Robin had it all," she wrote. "I am so deeply thankful that this dearly loved man graced this particular planet."

Williams' daughter, Zelda, posted a quote by Antoine de Saint-Exupery, the French writer and poet.

"You -- you alone will have the stars as no one else has them. ... In one of the stars I shall be living. In one of them I shall be laughing. And so it will be as if all the stars were laughing, when you look at the sky at night. ... You -- only you -- will have stars that can laugh," the quote read.

She added, "I love you. I miss you. I'll try to keep looking up."

President Obama issued a statement on the "one of a kind" actor.