"The introduction of a revolving frame proved a valuable source of distinction amongst lights." — Alan Stevenson
"To Fresnel belongs the additional merit of having first followed up his invention by the construction of a lens." — Alan Stevenson
"The dioptric system has been adopted to the complete exclusion of the catoptric." — Alan Stevenson
"His labors will be felt and acknowledged wherever maritime intercourse prevails." — Alan Stevenson
"Fresnel has produced many ingenious combinations of dioptric instruments for lighthouses." — Alan Stevenson

Quotes on the genius of Fresnel and lighthouse science

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