The Future Is Always Present, As A

If We Are Uncritical We Shall Always Find What We Want: We Shall Look For, And Find, Confirmations, And We Shall Look Away From, And Not See, Whatever Might Be Dangerous To Our Pet Theories. In This Way It Is Only Too Easy To Obtain What Appears To Be Overwhelming Evidence In Favor Of A Theory Which, If Approached Critically, Would Have Been Refuted.

In So Far As A Scientific Statement Speaks About Reality, It Must Be Falsifiable; And In So Far As It Is Not Falsifiable, It Does Not Speak About Reality.

No Number Of Sightings Of White Swans Can Prove The Theory That All Swans Are White. The Sighting Of Just One Black One May Disprove It.

Appealing To His [einstein's] Way Of Expressing Himself In Theological Terms, I Said: If God Had Wanted To Put Everything Into The Universe From The Beginning, He Would Have Created A Universe Without Change, Without Organisms And Evolution, And Without Man And Man's Experience Of Change. But He Seems To Have Thought That A Live Universe With Events Unexpected Even By Himself Would Be More Interesting Than A Dead One.

Our Aim As Scientists Is Objective Truth; More Truth, More Interesting Truth, More Intelligible Truth. We Cannot Reasonably Aim At Certainty. Once We Realize That Human Knowledge Is Fallible, We Realize Also That We Can Never Be Completely Certain That We Have Not Made A Mistake.