We Can Never Be Sure That The

Even If The Received Opinion Be Not Only True, But The Whole Truth; Unless It Is Suffered To Be, And Actually Is, Vigorously And Earnestly Contested, It Will, By Most Of Those Who Receive It, Be Held In The Manner Of A Prejudice, With Little Comprehension Or Feeling Of Its Rational Grounds

A Man Who Has Nothing For Which He Is Willing To Fight, Nothing Which Is More Important Than His Own Personal Safety, Is A Miserable Creature And Has No Chance Of Being Free Unless Made And Kept So By The Exertions Of Better Men Than Himself.

...there Ought To Exist The Fullest Liberty Of Professing And Discussing, As A Matter Of Ethical Conviction, Any Doctrine, However Immoral It May Be Considered.

There Is Nothing Which An Untrained Mind Shows Itself More Hopelessly Incapable, Than In Drawing The Proper General Conclusions From Its Own Experience. And Even Trained Minds, When All Their Training Is On A Special Subject, And Does Not Extend To The General Principles Of Induction, Are Only Kept Right When There Are Ready Opportunities Of Verifying Their Inferences By Facts.

Art Is The Employent Of The Powers Of Nature For An End.