Theory is the essence of facts. Without theory scientific knowledge would be only worthy of the madhouse. — Oliver Heaviside Copy Share Image
For a theory to be scientific it must be capable of being refuted by the evidence. Given that we have had three… — Peter Lilley Copy Share Image
A theory is scientific only if it can be disproved. But the moment you try to cover absolutely everything the chances are… — Hermann Bondi Copy Share Image
