agriculture than they are in humanity, and are not prepared to do justice to the slave and to Mexico, cost what it may... There are thousands who are in opinion opposed to slavery and to the war, who yet in effect do nothing to put an end to them." (See also: Thoreau's Slavery in Massachusetts which also advances this argument.) He exhorts people not to just wait passively for an opportunity to vote for justice, because voting for justice is as ineffective as wishing for justice; what you need to do is to actually be just. This is not to say that you have an obligation to devote your life to fighting for justice, but you do have an obligation not to commit injustice and not to give injustice your practical support. Paying taxes is one way in which otherwise well-meaning people collaborate in injustice. People who proclaim that the war in Mexico is wrong and that it is wrong to enforce slavery contradict themselves if they fund both things by paying taxes. Thoreau points out that the same people who applaud soldiers for refusing to fight an unjust war are not themselves willing to refuse to fund the government that started the war. In a constitutional republic like the United States, people often think that the proper response to an unjust law is to try to use the political process to change the law, but to obey and respect the law until it is changed. But if the law is itself clearly unjust, and the lawmaking process is not designed to quickly obliterate such unjust laws, then Thoreau says the law deserves no respect and it should be broken. In the case of the United States, the Constitution itself enshrines the institution of slavery, and therefore falls under this condemnation. Abolitionists, in Thoreau's opinion, should completely withdraw their support of the government and stop paying taxes, even if this means courting imprisonment, or even violence. Because the government will retaliate, Thoreau says he prefers living simply because he therefore has less to lose. "I can afford to refuse allegiance to Massachusetts.... It costs me less in every sense to incur the penalty of disobedience to the State than it would to obey. I should feel as if I were worth less in that case." He was briefly imprisoned for refusing to pay the poll tax, but even in jail