Archimedes Constructing His Circle Pays With His

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 Task Which We Have Set Ourselves Is Simply To Show Why And For What Purpose We Hold That Standpoint During Most Of Our Lives, And Why And For What Purpose We Are Provisionally Obliged To Abandon It.

Similarly, Many A Young Man, Hearing For The First Time Of The Refraction Of Stellar Light, Has Thought That Doubt Was Cast On The Whole Of Astronomy, Whereas Nothing Is Required But An Easily Effected And Unimportant Correction To Put Everything Right Again.

Science Always Has Its Origin In The Adaptation Of Thought To Some Definite Field Of Experience.

I Can Accept The Theory Of Relativity As Little As I Can Accept The Existence Of Atoms And Other Such Dogmas.