Explain the truth in each of the following paradoxes (p. 9):

3a. “I saw that, if there was a wall of stone between me and my townsmen, there was a still more difficult one to climb or break through, before they could get to be as free as I was.”

3b. “I felt as if I alone of all my townsmen had paid my tax.”

4. What idea is Thoreau stressing in telling us about getting his shoe fixed and leading the huckleberry party on the day he was released?