Physics Is Experience, Arranged In Economical Order.

I Know Of Nothing More Terrible Than The Poor Creatures Who Have Learned Too Much. Instead Of The Sound Powerful Judgement Which Would Probably Have Grown Up If They Had Learned Nothing, Their Thoughts Creep Timidly And Hypnotically After Words, Principles And Formulae, Constantly By The Same Paths. What They Have Acquired Is A Spider's Web Of Thoughts Too Weak To Furnish Sure Supports, But Complicated Enough To Provide Confusion.

Without Renouncing The Support Of Physics, It Is Possible For The Physiology Of The Senses, Not Only To Pursue Its Own Course Of Development, But Also To Afford To Physical Science Itself Powerful Assistance.

All This, The Positive And Physical Essence Of Mechanics, Which Makes Its Chief And Highest Interest For A Student Of Nature, Is In Existing Treatises Completely Buried And Concealed Beneath A Mass Of Technical Considerations.

Bodies Do Not Produce Sensations, But Complexes Of Elements (complexes Of Sensations) Make Up Bodies.

The History Of The Development Of Mechanics Is Quite Indispensable To A Full Comprehension Of The Science In Its Present Condition. It Also Affords A Simple And Instructive Example Or The Processes By Which Natural Science Generally Is Developed.