Balard did not discover bromine, rather bromine discovered Balard.{Comment on Antoine Jérôme Balard, discoverer of bromine.}

From one sublime genius—NEWTON—more light has proceeded than the labour of a thousand years preceding had been able to produce.

The progress of mankind is due exclusively to the progress of natural sciences, not to morals, religion or philosophy.

Only about seventy years ago was chemistry, like a grain of seed from a ripe fruit, separated from the other physical sciences. With Black, Cavendish and Priestley, its new era began. Medicine, pharmacy, and the useful arts, had prepared the soil upon which this seed was to germinate and to flourish.