Certainty Ends Inquiry.

The Symbol And The Metaphor Are As Necessary To Science As To Poetry.

Progress Is The Exploration Of Our Own Error. Evolution Is A Consolidation Of What Have Always Begun As Errors. And Errors Are Of Two Kinds: Errors That Turn Out To Be True And Errors That Turn Out To Be False (which Are Most Of Them). But They Both Have The Same Character Of Being An Imaginative Speculation. I Say All This Because I Want Very Much To Talk About The Human Side Of Discovery And Progress, And It Seems To Me Terribly Important To Say This In An Age In Which Most Non-scientists Are Feeling A Kind Of Loss Of Nerve.

To Me, Being An Intellectual Doesn't Mean Knowing About Intellectual Issues; It Means Taking Pleasure In Them.

Science Is A Very Human Form Of Knowledge. We Are Always At The Brink Of The Known; We Always Feel Forward For What Is To Be Hoped. Every Judgment In Science Stands On The Edge Of Error And Is Personal. Science Is A Tribute To What We Can Know Although We Are Fallible.

To Me The Most Interesting Thing About Man Is That He Is An Animal Who Practices Art And Science And In Every Known Society Practices Both Together.