Those Who Promise Us Paradise On Earth

Some Scientists Find, Or So It Seems, That They Get Their Best Ideas When Smoking; Others By Drinking Coffee Or Whisky. Thus There Is No Reason Why I Should Not Admit That Some May Get Their Ideas By Observing, Or By Repeating Observations.

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.

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.

There Can Be No Ultimate Statements Science: There Can Be No Statements In Science Which Can Not Be Tested, And Therefore None Which Cannot In Principle Be Refuted, By Falsifying Some Of The Conclusions Which Can Be Deduced From Them.

It Is Wrong To Think That Belief In Freedom Always Leads To Victory; We Must Always Be Prepared For It To Lead To Defeat. If We Choose Freedom, Then We Must Be Prepared To Perish Along With It.