Extraordinary observations require extraordinary evidence to make them believable.
One of the great commandments of science is: 'Mistrust arguments from authority.'
First rule in government spending: why build one when you can have two at twice the price?
Cleverly designed experiments are the key.
The cosmos is within us. We are made of star stuff
A stars rich in europium; of distant galaxies analyzed through the collective light of a hundred billion constituent stars. Astronomical spectroscopy is an almost magical technique. It amazes me still. Auguste Comte picked a particularly unfortunate example.