The fact that some widely held past beliefs have been conclusively proved erroneous doesn’t mean we have to fear that future evidence will always show our present beliefs to be wrong. How vulnerable our present beliefs are depends, among other things, on how strong the evidence for them is.

-Richard Dawkins, The Greatest Show on Earth

Science knows a lot more than most people realize. Despite the talk of “scientific revolutions” and “paradigm shifts,” the basic laws of physics are essentially the same today as they were at the time of Newton.

Anyone familiar with modern physics will have to agree that certain fundamentals, in particular the great conservation principles of energy and momentum, have not changed in four hundred years.

-God the failed hypothesis