Never Do Anything Against Conscience Even If

Science Is A Wonderful Thing If One Does Not Have To Earn One's Living At It.

The Only Sure Way To Avoid Making Mistakes Is To Have No New Ideas.

Yes, We Now Have To Divide Up Our Time Like That, Between Politics And Our Equations. But To Me Our Equations Are Far More Important, For Politics Are Only A Matter Of Present Concern. A Mathematical Equation Stands Forever.

I Do Not Believe That A Man Should Be Restrained In His Daily Actions By Being Afraid Of Punishment After Death Or That He Should Do Things Only Because In This Way He Will Be Rewarded After He Dies. This Does Not Make Sense. The Proper Guidance During The Life Of A Man Should Be The Weight That He Puts Upon Ethics And The Amount Of Consideration That He Has For Others.

Mathematics Deals Exclusively With The Relations Of Concepts To Each Other Without Consideration Of Their Relation To Experience.