Our Knowledge Can Only Be

Science Is Perhaps The Only Human Activity In Which Errors Are Systematically Criticized And, In Time, Corrected.

[great Scientists] Are Men Of Bold Ideas, But Highly Critical Of Their Own Ideas: They Try To Find Whether Their Ideas Are Right By Trying First To Find Whether They Are Not Perhaps Wrong. They Work With Bold Conjectures And Severe Attempts At Refuting Their Own Conjectures.

The Open Society Is One In Which Men Have Learned To Be To Some Extent Critical Of Taboos, And To Base Decisions On The Authority Of Their Own Intelligence.

I Think That There Is Only One Way To Science - Or To Philosophy, For That Matter: To Meet A Problem, To See Its Beauty And Fall In Love With It; To Get Married To It And To Live With It Happily, Till Death Do Ye Part - Unless You Should Meet Another And Even More Fascinating Problem Or Unless, Indeed, You Should Obtain A Solution. But Even If You Do Obtain A Solution, You May Then Discover, To Your Delight, The Existence Of A Whole Family Of Enchanting, Though Perhaps Difficult, Problem Children, For Whose Welfare You May Work, With A Purpose, To The End Of Your Days.

Ignorance Is Not A Simple Lack Of Knowledge But An Active Aversion To Knowledge, The Refusal To Know, Issuing From Cowardice, Pride, Or Laziness Of Mind.