It is also a good rule not to put overmuch confidence in the observational results that are put forward until they are confirmed by theory.
“Almost a quarter of our planet is a single mountain range and we didn't enter it until after Neil Armstrong and Buzz Aldrin went to the moon. So we went to the moon, played golf up there, before we went to the largest feature on our own planet.”
“Truth, like the juice of the poppy, in small quantities, calms men; in larger, heats and irritates them, and is attended by fatal consequences in excess.”