When a sixth of the population of a nation which has undertaken to be the refuge of liberty are slaves, and a whole country [Mexico] is unjustly overrun and conquered by a foreign army, and subjected to military law, I think that it is not too soon for honest men to rebel and revolutionize. What makes this duty the more urgent is the fact that the country so overrun is not our own, but ours is the invading army.
Henry David ThoreauThe fact is, mental philosophy is very like Poverty, which, you know, begins at home; and indeed, when it goes abroad, it is poverty itself.
Henry David ThoreauThe true finish is the work of time, and the use to which a thing is put. The elements are still polishing the pyramids.
Henry David Thoreau