3. Help comes in the custom of the country, and the rule of _Impera parendo_. The rule is not to dictate, nor to insist on carrying out each of your schemes by ignorant wilfulness, but to learn practically the secret spoken from all nature, that things themselves refuse to be mismanaged, and will show to the watchful their own law. Nobody need stir hand or foot. The custom of the country will do it all. I know not how to build or to plant; neither how to buy wood, nor what to do with the house-lot, the field, or the wood-lot, when bought. Never fear: it is all settled how it shall be, long beforehand, in the custom of the country, whether to sand, or whether to clay it, when to plough, and how to dress, whether to grass, or to corn; and you cannot help or hinder it. Nature has her own best mode of doing each thing, and she has somewhere told it plainly, if we will keep our eyes and ears open. If not, she will not be slow in undeceiving us, when we prefer our own way to hers. How often we must remember the art of the surgeon, which, in replacing the broken bone, contents itself with releasing the parts from false position; they fly into place by the action of the muscles. On this art of nature all our arts rely. Of the two eminent engineers in the recent construction of railways in England, Mr. Brunel went straight from terminus to terminus, through mountains, over streams, crossing highways, cutting ducal estates in two, and shooting through this man’s cellar, and that man’s attic window, and so arriving at his end, at great pleasure to geometers, but with cost to his company. Mr. Stephenson, on the contrary, believing that the river knows the way, followed his valley, as implicitly as our Western Railroad follows the Westfield River, and turned out to be the safest and cheapest engineer. We say the cows laid out Boston. Well, there are worse surveyors. Every pedestrian in our pastures has frequent occasion to thank the cows for cutting the best path through the thicket, and over the hills: and travellers and Indians know the value of a buffalo-trail, which is sure to be the easiest possible pass through the ridge.