Eureka, Eureka! (i Found It, I Found

Give Me But A Firm Spot On Which To Stand, And I Shall Move The Earth.

Give Me A Place To Stand, And A Lever Long Enough, And I Will Move The World.

Equal Weights At Equal Distances Are In Equilibrium And Equal Weights At Unequal Distances Are Not In Equilibrium But Incline Towards The Weight Which Is At The Greater Distance.

Archimedes To Eratosthenes Greeting. ... Certain Things First Became Clear To Me By A Mechanical Method, Although They Had To Be Demonstrated By Geometry Afterwards Because Their Investigation By The Said Method Did Not Furnish An Actual Demonstration. But It Is Of Course Easier, When We Have Previously Acquired By The Method, Some Knowledge Of The Questions, To Supply The Proof Than It Is To Find It Without Any Previous Knowledge.

How Many Theorems In Geometry Which Have Seemed At First Impracticable Are In Time Successfully Worked Out!