Power Is The By-product Of Understanding.

The Most Powerful Drive In The Ascent Of Man Is His Pleasure In His Own Skill. He Loves To Do What He Does Well And, Having Done It Well, He Loves To Do It Better. You See It In His Science. You See It In The Magnificence With Which He Carves And Builds, The Loving Care, The Gaiety, The Effrontery. The Monuments Are Supposed To Commemorate Kings And Religions, Heroes, Dogmas, But In The End The Man They Commemorate Is The Builder.

The Principle Of Tolerance, Fixed Once For All The Realization That All Knowledge Is Limited. It Is An Irony Of History That At The Very Time When This Was Being Worked Out, There Should Rise, Under Hitler In Germany And Other Tyrants Elsewhere, A Counter-conception: A Principle Of Monstrous Certainty. When The Future Looks Back On The 1930's, It Will Think Of Them As A Crucial Confrontation Of Culture As I Have Been Expounding It - The Ascent Of Man Against The Throwback To The Despots' Belief That They Have Absolute Certainty.

The Idea That The Universe Is Running Down Comes From A Simple Observation About Machines. Every Machine Consumes More Energy Than It Renders.

One Aim Of Physical Sciences Had Been To Give An Exact Picture The Material World. One Achievement Of Physics In The Twentieth Century Has Been To Prove That That Aim Is Unattainable.

You Will Die But The Carbon Will Not; Its Career Does Not End With You. It Will Return To The Soil, And There A Plant May Take It Up Again In Time, Sending It Once More On A Cycle Of Plant And Animal Life.