Contradictions, in this sense, are the idea that phenomena, ideas, and things contain two sides that help to define one another and, at least for the moment, are inseparable. We are all trying to resolve contradictions as we live our lives and conduct our work. For example, we seek to grow our movement and build ideological clarity; both goals are important, and can assist one another, but they are also in opposition to one another and can be one another’s undoing. Contradictions are perpetual in the sense that even as one is resolved, another emerges. There is a Yoruba proverb that says, “Without evil there cannot be good,” which illustrates how contradictions hold seemingly irreconcilable qualities together. Contradictions reflect one of dialectical materialism’s three principles, “the unity of opposites.”