It doesn't matter what the scientist's motivation is, what matters (in the context of the letter's argument) are the eventual results. Applied to the microscop

It doesn't matter what the scientist's motivation is, what matters (in the context of the letter's argument) are the eventual results. Applied to the microscope-argument: Even if the inventor and early users of the microscope were only interested in satisfying their curiosity, the results are immeasurably valuable many years later.