The right to the free use of his hands is the workman's property, as much as the rich man's right to the undisturbed income from his factory, houses, and lands. By his work he earns present subsistence for himself and family. His savings may result in accumulations which will make him as rich in houses and lands as his employer. This right of acquiring property is an inherent, indefeasible right of the workman. To exercise it, he must have the unrestricted privilege of working for such employer as he chooses, at such wages as he chooses to accept. This is one of the rights guaranteed to him by our Declaration of Rights. It is a right of which the legislature cannot deprive him, one which the law of no trades union can take from him, and one which it is the bounden duty of the courts to protect. The one most concerned in jealously maintaining this freedom is the workman himself.[Footnote: Erdman _v._ Mitchell, 207 Pennsylvania State Reports, 79; 56 Atlantic Reporter, 331.] But, as already suggested in the preceding chapter, the judges whose opinions have vitalized and enlarged our written law by reading into it some new meaning or application have but echoed the voice of the bar. The greatest achievements of Marshall in this direction were really but a statement of his approbation of positions laid down before him by Daniel Webster. In the early stages of the Dartmouth College case, when it was before the State courts in New Hampshire, it was Webster and his associates, Jeremiah Mason and Jeremiah Smith, both lawyers of the highest rank, who first put forward the doctrine that the charter of a private corporation was a contract; and when the cause came before the Supreme Court of the United States it fell to the lot of Webster to bring it to the attention of the great Chief Justice.[Footnote: "Works of Daniel Webster," V, 497.] So in the Florida case it was he, in supporting the cause of the prevailing party, who suggested that the Territory of Florida, though owned by the United States, was no part of them. "By the law of England," he went on to say, "when possession is taken of territories, the king, _Jure Corona_, has the power of legislation until parliament shall interfere. Congress have the _Jus Corona_ in this case, and Florida was to be governed by Congress as she thought proper."[Footnote: American Insurance Co. _v._ Canter, 1 Peters' Reports, 611, 538.] This argument did not spend its force in its effect on Marshall. When, after the lapse of two generations, greater problems of the relations of the United States to territory newly acquired from Spain arose, it was, as has been said above, made one of the cornerstones of the opinion of the same court which determined what they were.[Footnote: Downes _v._ Bidwell, 182 United States Reports, 244, 265.]