Do What Is Right, Though The World

Most Men Use Their Knowledge Only Under Guidance From Others Because They Lack The Courage To Think Independently Using Their Own Reasoning Abilities. It Takes Intellectual Daring To Discover The Truth.

Great Minds Think For Themselves.

Reason Must Approach Nature With The View, Indeed, Of Receiving Information From It, Not, However, In The Character Of A Pupil, Who Listens To All That His Master Chooses To Tell Him, But In That Of A Judge, Who Compels The Witnesses To Reply To Those Questions Which He Himself Thinks Fit To Propose. To This Single Idea Must The Revolution Be Ascribed, By Which, After Groping In The Dark For So Many Centuries, Natural Science Was At Length Conducted Into The Path Of Certain Progress.

All Human Knowledge Begins With Intuitions, Proceeds From Thence To Concepts, And Ends With Ideas.

Natural Science Physics Contains In Itself Synthetical Judgments A Priori, As Principles. ... Space Then Is A Necessary Representation A Priori, Which Serves For The Foundation Of All External Intuitions.