William Herschel

“We are to look for no other criterion of the truth of a hypothesis, but its affording a physically true explanation of the phenomena.”

“A knowledge of the construction of the heavens has always been the ultimate object of my observations.”

“All these discoveries have been made with a seven-foot reflector.”

“The undevout astronomer must be mad.”

“If we would hope to make the best use of a telescope, we must not think we are looking at the stars, but through them.”

“Here, then, we have a celestial body, which, from its faintness and distance, can only be seen by the best telescopes.”

“Seeing is in some respects an art, which must be learnt.”

“What a beautiful step has been made in the knowledge of the construction of the heavens!”

“I have looked further into space than ever human being did before me.”