Those Who Do Not Know

Laplace Considers Astronomy A Science Of Observation, Because We Can Only Observe The Movements Of The Planets; We Cannot Reach Them, Indeed, To Alter Their Course And To Experiment With Them. "on Earth," Said Laplace, "we Make Phenomena Vary By Experiments; In The Sky, We Carefully Define All The Phenomena Presented To Us By Celestial Motion." Certain Physicians Call Medicine A Science Of Observations, Because They Wrongly Think That Experimentation Is Inapplicable To It.

The Science Of Life Is A Superb And Dazzlingly Lighted Hall Which May Be Reached Only By Passing Through A Long And Ghastly Kitchen.

Man Can Learn Nothing Unless He Proceeds From The Known To The Unknown.

Our Ideas Are Only Intellectual Instruments Which We Use To Break Into Phenomena; We Must Change Them When They Have Served Their Purpose, As We Change A Blunt Lancet That We Have Used Long Enough.

The Joy Of Discovery Is Certainly The Liveliest That The Mind Of Man Can Ever Feel.