Solidarity is not charity. Charity flows downward, from those who have to those who lack. Solidarity flows sideways, between people who recognize that their struggles are connected. It is the refusal to say “that is not my problem” when another community, another class, another nation faces injustice. It is the understanding that an injury to one is, in some real sense, an injury to all.
Pope John Paul II defined solidarity as “a firm and persevering determination to commit oneself to the common good,” and Catholic Social Teaching has long placed it alongside subsidiarity as a pillar of just social order. In the Ubuntu philosophy of southern and eastern Africa, solidarity is not an abstract ideal but a lived reality: the community’s wellbeing and the individual’s wellbeing are understood as inseparable. Paulo Freire, writing from the experience of Brazilian poverty, argued that genuine solidarity means entering into the situation of the oppressed — not to rescue them but to struggle alongside them, because their liberation and yours are the same liberation.
The labor movements of the nineteenth and twentieth centuries built solidarity into an organizing principle. Workers who had no individual power discovered collective power. The Swahili word mshikamano — holding together — captures this: solidarity is a practice of mutual grip, of refusing to let go of one another when the forces pulling people apart are strong. In Islam, the concept of the ummah — the global community of believers — and the obligation of zakat — giving a portion of one’s wealth — embed solidarity into the structure of daily religious life.
Solidarity is tested most sharply across difference. It is relatively easy to stand with people who look, think, and live like you. The deeper form of solidarity crosses lines of race, religion, nationality, and class. It asks: can you see your fate in the fate of someone whose life is nothing like yours? Fanon warned that solidarity without action is mere sentiment. The question is always what you are willing to risk, to sacrifice, to do.