It's fitting that Rosa Parks' birthday, February 4, has been designated the Day of Courage. Parks is, of course, famous for her work to end segregation and racism, beginning with her refusal to give up her bus seat to a white passenger and continuing with her leadership during the bus boycotts that followed. But Parks soon broadened her base to include others who needed to be freed from the yoke of oppression: animals. She was a vegetarian for more than 40 years.

In fact, many civil rights leaders, past and present, have maintained that as long as one form of prejudice exists, no form of prejudice can be completely eradicated, and thus, civil rights and animal rights are inextricably linked:

Dr. Martin Luther King Jr.: "There comes a time when one must take a position that is neither safe, nor political, nor popular, but he must take it because his conscience tells him that it is right."

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Alice Walker: "If I'm eating food I know was a creature in a cage, it brings up memories of segregation and the stories from my ancestors, of being in captivity and denied their personalities, their true beings. Animals were not made for us, or our use. They have their own use, which is just being who they are."

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Cesar Chavez: "Kindness and compassion towards all living beings is a mark of a civilized society. Racism, economic deprival, dog fighting and cock fighting, bullfighting and rodeos are all cut from the same defective fabric: violence. Only when we have become nonviolent towards all life will we have learned to live well ourselves."

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The Rev. Al Sharpton: "So I say if KFC wants to take [African-Americans'] money, and use it to pay for sloppy practices that hurt animals, I say we send them a message that this is not going to happen. I'm calling on people to boycott KFC until they adopt animal welfare systems recommended by PETA." 

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Russell Simmons: "The more I opened myself up to the idea of the full scope of exactly what non-violence translates to, the less interested I became in consuming the energy associated with the flesh of an animal that only knew suffering in his/her life and pain and terror in its death. "

Rosa Parks did not just refuse to give up her seat on the bus. She refused to give up her humanity. She refused to accept oppression as "how things are." In honor of her, please encourage your friends and family to do away with the last of their personal prejudices by sharing the quotation above that speaks to you the most on your social-networking sites.

Rosa Parks is remembered as one of the most fearless civil rights activists in history. So it's fitting that her birthday, February 4, has been deemed the National Day of Courage, when we are all encouraged to raise our voices against injustice.

The Henry Ford Museum in the Detroit area, where Parks spent the latter half of her life, plans to pay tribute to her with a day of special events. But the museum overlooked an important detail: Parks didn't harm animals for food. She was a vegetarian. And a celebration of her life and her legacy should be, too. So PETA raised our voices and asked the museum to honor all of Parks' convictions by serving vegetarian food.

Parks is, of course, best known for her work to end segregation and racism. But like her friend, Dr. Martin Luther King Jr., Parks soon broadened her base to advocate for all socially disadvantaged people. And she, like Dr. King's widow, Coretta Scott King, and his son, Dexter Scott King, went on to embrace other disadvantaged species. Believing that animals should also be free from being subjugated and abused, Parks became a vegetarian and King's widow and son both went vegan.

Not only did Rosa Parks refuse to give up her seat on the bus, she also refused to go along with the idea that it's OK to inflict suffering on others for her own ends. In honoring her legacy, we should do the same.