ABSTRACT
A man may read, hear, and observe, to as great an extent as he pleases, without in the least diminishing the liberty of others to do the like—in fact, without affecting the condition of others in any way. It is clear, too, that the knowledge thus obtained may be digested, re-organized, or combined afresh, and new knowledge educed from it by its possessor, without the rights of his fellows being thereby trespassed upon. Seeing, therefore, that a man may claim the exclusive use of his original ideas without overstepping the boundaries of equal freedom, it follows that he has a right so to claim them; or, in other words, such ideas are his property. Many have remarked the tendency that exists for an important invention or discovery to be made by independent investigators nearly at the same time. The laws of patent and copyright, express qualification by confining the inventor’s or author’s privilege within a certain term of years.
