"Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success"

This quote by Thomas A. Edison speaks with the value of utility in the development procedure. Edison is suggesting that the success of a development is determined by its utility, or usefulness. He is stating that if an invention does not have a practical function, then it is unworthy inventing. He thinks that the sale of an innovation is evidence of its utility, and therefore its success. This quote stresses the importance of usefulness in the invention procedure. Edison was a respected creator, and his quote shows his belief that developments ought to be useful and useful in order to succeed. He was a firm believer in the idea that inventions should be created with a purpose in mind, which the sale of a creation is a testimony to its utility.