President Barack Obama, cycling champ and cancer survivor Lance Armstrong, and other famous public figures are remembering the late Elizabeth Edwards.

"Michelle and I were deeply saddened to learn of the passing of Elizabeth Edwards," President Obama said. "This afternoon I spoke to Cate Edwards and John Edwards, and offered our family's condolences. I came to know and admire Elizabeth over the course of the presidential campaign. She was a tenacious advocate for fixing our health care system and fighting poverty, and our country has benefited from the voice she gave to the cause of building a society that lifts up all those left behind.

"In her life, Elizabeth Edwards knew tragedy and pain," the president continued. "Many others would have turned inward; many others in the face of such adversity would have given up. But through all that she endured, Elizabeth revealed a kind of fortitude and grace that will long remain a source of inspiration. Our thoughts and prayers are with her family and friends."

"Elizabeth Edwards fought a brave battle against a terrible, ravaging disease that takes too many lives every day," Vice President Joe Biden said. "She was an inspiration to all who knew her, and to those who felt they knew her. Jill and I extend our deepest sympathies to the Edwards family as they grieve during this difficult and painful time."

Lance Armstrong, who won his battle with testicular cancer, tweeted: "RIP Elizabeth. It was an honor to get to know you and be your friend. I, like millions more, will miss you dearly."

"With the passing of Elizabeth Edwards, America has lost a symbol of strength, hope, and humanity, a tireless advocate for health care for all Americans, and determined crusader for cancer cures," said former President Bill Clinton. "Her children have lost a loving mother, her friends a wise counselor. My prayers are with them. She was a remarkable woman who dealt with the challenges her life dealt her with courage and grace."

"I was deeply saddened to learn of the passing of my dear friend, Elizabeth Edwards," California First Lady Maria Shriver said. "My heart goes out to her loving family. Elizabeth was a mighty warrior, and I've long admired her courage, her compassion and her personal quest for truth. She was a public servant, a dedicated mother, a tireless advocate and a loyal friend. She showed up to speak at The Women's Conference every time I asked, and our audience was always moved by the open and honest way she would share the struggles she faced along her journey. I hope her children know their mother was an inspiration to women everywhere -- a truly great woman."

Edwards, the estranged wife of former Senator John Edwards, died at home in Chapel Hill, North Carolina on Tuesday after a long battle with breast cancer. She was surrounded by family at the time of her death.

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