Natural Science, Does Not Simply Describe And

Every Tool Carries With It The Spirit By Which It Has Been Created.

The World Thus Appears As A Complicated Tissue Of Events, In Which Connections Of Different Kinds Alternate Or Overlap Or Combine And Thereby Determine The Texture Of The Whole.

Even For The Physicist The Description In Plain Language Will Be A Criterion Of The Degree Of Understanding That Has Been Reached.

In The Strict Formulation Of The Law Of Causality—if We Know The Present, We Can Calculate The Future—it Is Not The Conclusion That Is Wrong But The Premise. On An Implication Of The Uncertainty Principle.

If Nature Leads Us To Mathematical Forms Of Great Simplicity And Beauty - By Forms I Am Referring To Coherent Systems Of Hypothesis, Axioms, Etc. - To Forms That No One Has Previously Encountered, We Cannot Help Thinking That They Are "true," That They Reveal A Genuine Feature Of Nature... You Must Have Felt This Too: The Almost Frightening Simplicity And Wholeness Of Relationships Which Nature Suddenly Spreads Out Before Us And For Which None Of Us Was In The Least Prepared.