Necessity Is The Mother Of All Invention.

Out Yonder There Is This Huge World, Which Exists Independently Of Us Human Beings And Which Stands Before Us Like A Great, Eternal Riddle, At Least Partially Accessible To Our Inspection And Thinking

The Opinion Prevailed Among Advanced Minds That It Was Time That Belief Should Be Replaced Increasingly By Knowledge; Belief That Did Not Itself Rest On Knowledge Was Superstition, And As Such Had To Be Opposed.

In My Opinion There Is No Other Salvation For Civilization And Even For The Human Race Than The Creation Of A World Government With Security On The Basis Of Law. As Long As There Are Sovereign States With Their Separate Armaments And Armament Secrets, New World Wars Cannot Be Avoided.

Any Fool Can Know. The Point Is To Understand.

The Important Thing Is Not To Stop Questioning. Curiosity Has Its Own Reason For Existing. One Cannot Help But Be In Awe When He Contemplates The Mysteries Of Eternity, Of Life, Of The Marvelous Structure Of Reality. It Is Enough If One Tries Merely To Comprehend A Little Of This Mystery Every Day. Never Lose A Holy Curiosity.