The more important fundamental laws and facts of physical science have all been discovered, and these are now so firmly established that the possibility of their ever being supplanted in consequence of new discoveries is exceedingly remote . . . Our future discoveries must be looked for in the sixth place of decimals.

~ Albert A. Michelson, 1894

There is nothing new to be discovered in physics now.  All that remains is more and more precise measurement.

~ William Thomson (Lord Kelvin), 1900