I think and think for months, for years. Ninety-nine times the conclusion is false. The hundredth time I am right.

This quote perfectly captures Einstein's approach to scientific discovery - persistent iteration where most attempts fail but persistence leads to breakthrough. He viewed incorrect conclusions not as failures but as necessary steps toward understanding. Edison was more of an inventor than a theoretical physicist, while Bohr and Copernicus, though brilliant, don't have this particular quote attributed to them.