They’re profound thinkers who spoke powerful words. But they also lived their lives as an example, putting these words into action every day. From Africa to the Americas, here are quotes from 20 famous–and not so famous–people, living and dead, who spent their lives thinking about and contributing to social justice movements.

1. “There is no such thing as a single-issue struggle because we do not live single-issue lives.” -Audre Lorde

2. “We must not allow ourselves to become like the system we oppose.” -Archbishop Desmond Tutu

3. “When will our consciences grow so tender that we will act to prevent human misery rather than avenge it?” -Eleanor Roosevelt

Photo: Sepperer Markus

4. “Washing one’s hands of the conflict between the powerful and the powerless means to side with the powerful, not to be neutral.”- Paulo Freire

5. “People must take a modicum of public responsibility for each other even if they have no ties to each other.” -Jane Jacobs

6. “We have a world to conquer…one person at a time…starting with ourselves.” -Nikki Giovanni

7. “We must use time creatively, and forever realize that the time is always ripe to do right.”- Dr. Martin Luther King, Jr.

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8. “It is not enough to be compassionate – you must act.”- His Holiness The Dalai Lama

9. “The people are the only ones capable of transforming society.”- Rigoberta Menchu

10. “Do not wait for extraordinary circumstances to do good; try to use ordinary situations.”- Jean Paul Richter

11. “There will be no Homeland Security until we realize that the entire planet is our homeland. Every sentient being in the world must feel secure.” -John Perkins

12. “Although the world is full of suffering, it is also full of overcoming it.” -Helen Keller

13. “Take your easy tears somewhere else. Tell yourself none of this ever had to happen. And then go make it stop. With whatever breath you have left. Grief is a sword or it is nothing.” -Paul Monette

14. “Nothing that is worth doing can be achieved in our lifetime; therefore we must be saved by hope.” -Reinhold Neibuhr

15. “During times of universal deceit telling the truth becomes a revolutionary act.” -George Orwell

16. “To be human, at the most profound level, is to encounter honestly the inescapable circumstances that constrain us, yet muster the courage to struggle compassionately for our own unique individualities and for more democratic and free societies.” -Cornel West

Photo: Amor Ministries

17.”If you are trying to transform a brutalized society into one where people can live in dignity and hope, you begin with the empowering of the most powerless. You build from the ground up.” -Adrienne Rich

18. “Wisdom lies neither in fixity nor in change, but in the dialectic between the two.” -Octavio Paz

19. “I swore never to be silent whenever and wherever human beings endure suffering and humiliation. We must always take sides. Neutrality helps the oppressor, never the victim.” -Elie Wiesel

20. “The more you move, the stronger you’ll grow….” -Ha Jin

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Feature photo: eneas