As a scholar of personal narratives by marginalized women activists from around the world, I have been studying the dynamics of privilege and oppression at close range for many years.

Audre Lorde

For those on the receiving end of repressive treatment, an essential strategy of resistance is one voiced by the poet-activist Audre Lorde years ago: “the transformation of silence into language and action.”

We’ve been seeing this transformation since the murder of Michael Brown last summer. The people of Ferguson refused to take this outrage silently, and others, of all ethnicities and from all across the country, have rallied to their cause. Since the moment the grand jury decision letting the police off the hook—again—was handed down, my social media feeds have been on fire with declarations of sympathy and anger, along with demands for positive social change.

It has been heartening to see so many Americans marching together in cities all across the country in support of racial justice. Lots of white faces mixed in with the black and brown ones, all united in demanding that our government and legal system protect the rights of all Americans, not just the ones with privilege and power granted by a discriminatory system.

An oppressive system will try to protect those in power and maintain its status quo by discouraging dissent, sometimes silencing its critics by force (as in, for example, the assassinations of Martin Luther King Jr. and Malcolm X) or longterm imprisonment (think Leonard Peltier or Nelson Mandela).

Sometimes the silencing is imposed by shaming (think how women are often made to feel embarrassed and “unfeminine” when we dare to speak out against oppression by men); sometimes by peer pressure and the judicious distribution of rewards to those who go with the flow (for instance, young men can be rewarded by fraternity membership or sports glory when they go along with oppressive treatment of women or younger recruits).

One aspect of privilege I have been especially struck by is this formulation, which I learned from the gender studies scholar Michael Kimmel: “privilege is invisible to those who have it.”

Too often, those in power don’t realize how they participate in the oppression of others. Or maybe they choose to turn a blind eye, because acknowledging the effects of privilege would make them feel uncomfortable about themselves.

Privilege and oppression are relative terms, and very few people fit entirely into one category or another. In other words, I might be privileged by my white skin, but disadvantaged by my gender. I might be privileged by my gender, but disadvantaged by being born into poverty. And so on.

Those of us who believe in justice and want to live in a country that protects the rights of all its citizens equally need to understand how important it is to use our privileges, whatever they may be, to fight oppression in all of its guises.

Immigrants arriving at Ellis Island, NY, early 20th century

For example, immigration reform: Americans who remember that just a few generations back their families were fortunate enough to be able to enter this country legally need to stand up for the rights of today’s immigrants.

Or women’s rights: we need to cheer on men like Nick Kristof, who consistently serves as an ally for oppressed women, using his privilege as a New York Times columnist to call attention to violations of women’s human rights worldwide.

In the environmentalist and animal rights movements, we see human beings using our privilege to advocate for the rights of wild animals and farmed animals to a life well lived.

And so on. Social movements are strongest and most successful when they draw their power from solidarity between the privileged and the oppressed.

History shows us that when a social system veers too far into an oppressive dynamic, it becomes weak and liable to fall. Social revolutions occur when enough people are fed up and have little to lose by challenging the status quo.

Americans know that we’re in a precarious state right now, with our politicians being bought and paid for by industry, the super-rich growing ever wealthier while the vaunted American middle class slips down into the ranks of the struggling working poor.

We are living through a dangerous time, but a time of opportunity too: a time when those of us who are awake to the dangers can speak out against oppression, stand up for justice, and insist on the structural changes needed to make our country live up to its own ideals.

I’m not talking about riots here, although those are sometimes the only way the system can be made to focus on the rage of the oppressed.

I’m talking about recognizing the dynamics of privilege and oppression, understanding our own place in the system, and using whatever privileges we have to support those with less power.

Only this kind of broad-based solidarity, based in our own communities but with a nation-wide reach, can shift the oppressive system that was stacked against Michael Brown in Ferguson. When to start? Now.