Do What Is Right, Though The World

Live Your Life As Though Your Every Act Were To Become A Universal Law.

The Instruction Of Children Should Aim Gradually To Combine Knowing And Doing. Among All Sciences Mathematics Seems To Be The Only One Of A Kind To Satisfy This Aim Most Completely.

A Man Who Has Tasted With Profound Enjoyment The Pleasure Of Agreeable Society Will Eat With A Greater Appetite Than He Who Rode Horseback For Two Hours. An Amusing Lecture Is As Useful For Health As The Exercise Of The Body.

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.

Our Knowledge Springs From Two Fundamental Sources Of The Mind; The First Is The Capacity Of Receiving Representations (receptivity For Impressions), The Second Is The Power Of Knowing An Object Through These Representations (spontaneity [in The Production] Of Concepts).