Personally, People Know Themselves Very Poorly.

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.

A Colour Is A Physical Object As Soon As We Consider Its Dependence, For Instance, Upon Its Luminous Source, Upon Other Colours, Upon Temperatures, Upon Spaces, And So Forth.

The Biological Task Of Science Is To Provide The Fully Developed Human Individual With As Perfect A Means Of Orientating Himself As Possible. No Other Scientific Ideal Can Be Realised, And Any Other Must Be Meaningless.

In Reality, The Law Always Contains Less Than The Fact Itself, Because It Does Not Reproduce The Fact As A Whole But Only In That Aspect Of It Which Is Important For Us, The Rest Being Intentionally Or From Necessity Omitted.

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.