A Fact In Itself Is Nothing. It

The Better Educated We Are And The More Acquired Information We Have, The Better Prepared Shall We Find Our Minds For Making Great And Fruitful Discoveries.

We Achieve More Than We Know. We Know More Than We Understand. We Understand More Than We Can Explain.

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.

Theories Are Like A Stairway; By Climbing, Science Widens Its Horizon More And More, Because Theories Embody And Necessarily Include Proportionately More Facts As They Advance.

[those] Who Have An Excessive Faith In Their Theories Or In Their Ideas Are Not Only Poorly Disposed To Make Discoveries, But They Also Make Very Poor Observations.