One has but to read the decisions of the courts to see that the matter of non-interference with the great Exchanges, on technical grounds, has become a fixture in our jurisprudence. “The Exchanges,” said Judge Grosscup of the United States Circuit Court, “balance like the governor of an engine the otherwise erratic course of prices. They focus intelligence from all lands, and the prospects for the whole year, by bringing together minds trained to weigh such intelligence and to forecast the prospects. They tend to steady the markets more nearly to their right level than if left to chance or unhindered manipulation.”[28] In somewhat similar vein Justice Holmes of the United States Supreme Court, said: “Speculation ... is the self-adjustment of society to the probable. Its value is well known as a means of avoiding or mitigating catastrophes, equalizing prices, and providing for periods of want. _It is true that the success of the strong induces imitation by the weak, and that incompetent persons bring themselves to ruin by undertaking to speculate in their turn. But legislatures and courts generally have recognized that the natural evolutions of a complex society are to be touched only with a very cautious hand, and that such coarse attempts at a remedy for the waste incident to every social function as a simple prohibition and laws to stop its being, are harmful and vain._”[29] With these opinions before them, so long as the governors of the Stock Exchange continue their policy of a wise and dignified administration in the interest of the public they serve, there is nothing to fear. Corrections, remedies, improvements, and reforms will be found to be necessary from time to time--some of them are necessary at this moment, and the governors are hard at work on the task. To accuse them of indifference or neglect of duty is to deny them that form of intelligence which enables a man to protect his property. Their splendid institution has grown to its present importance and power through economic development that could not have been foreseen nor prevented. Speculation on a large scale has accompanied its growth, and contributed to it; and speculation, as we have seen, is a highly desirable and useful part of all business. This speculation numbers among its adherents people in all parts of the world who have a perfect right to speculate, and who do vastly more good than harm in their operations.