I Don't Think There's Any Essential Difference,

The Man Who Has Learned That Three Plus One Are Four Doesn't Have To Go Through A Proof Of That Assertion With Coins, Or Dice, Or Chess Pieces, Or Pencils. He Knows It, And That's That. He Cannot Conceive A Different Sum. There Are Mathematicians Who Say That Three Plus One Is A Tautology For Four, A Different Way Of Saying "four" ... If Three Plus One Can Be Two, Or Fourteen, Then Reason Is Madness.

My Books Standing There On The Shelf Do Not Know That I Have Written Them.

In The Order Of Literature, As In Others, There Is No Act That Is Not The Coronation Of An Infinite Series Of Causes And The Source Of An Infinite Series Of Effects.

Do You Want To See What Human Eyes Have Never Seen? Look At The Moon. Do You Want To Hear What Ears Have Never Heard? Listen To The Bird's Cry. Do You Want To Touch What Hands Have Never Touched? Touch The Earth. Verily I Say That God Is About To Create The World.

Every Man Should Be Capable Of All Ideas.