Personally, People Know Themselves Very Poorly.

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.

Thought Experiment Is In Any Case A Necessary Precondition For Physical Experiment. Every Experimenter And Inventor Must Have The Planned Arrangement In His Head Before Translating It Into Fact.

The Presentations And Conceptions Of The Average Man Of The World Are Formed And Dominated, Not By The Full And Pure Desire For Knowledge As An End In Itself, But By The Struggle To Adapt Himself Favourably To The Conditions Of Life.

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

It Would Not Become Physical Science To See In Its Self Created, Changeable, Economical Tools, Molecules And Atoms, Realities Behind Phenomena... The Atom Must Remain A Tool For Representing Phenomena.