The test of an invention is the power ...

Polaroid co-founder Edwin Land said, "The test of an invention is the power of [the] inventor to push it through in the face of staunch - not opposition, but indifference - in society." Great ideas and inventions are often shunned or ignored before they are accepted. It makes sense then that inventors tend to be a hearty sort: they don't mind failure, they don't care what others think, and they're willing to work really damn hard.