So long as an individual alone, or in combination with a group, continues to carry on that productive activity which first procured him a capital-basis to work on, so long he shall retain the right to use accumulations of capital arising as business gains on the primary capital where the gains are applied to the productive extension of the business. Directly this particular personality ceases to control the work of production, the accumulation of capital shall pass on to another person, or group, to carry on the same kind of business, or some other branch of productive industry useful to the whole community. Capital also, that accrues from a productive industry but is not used for its extension, must from the beginning go the same way. Nothing shall count as the personal property of the individual directing the business, except what he receives in accordance with the claim he made when he first took over the business--claims, which he felt able to make on the ground of his personal abilities, and which appear justified by the fact, that he was able to impress people with his abilities sufficiently for them to trust him with capital. If through his personal exertions the capital has been increased, then a portion of this increment will pass into his private ownership,--the addition so made to his original earnings representing a percentage on the addition to the capital. Where the original controller of an industry is unable, or unwilling, to continue in charge, the capital used to start it will either pass over to the new controller with all incumbent obligations, or else will revert to the original owners, according as these latter may decide.