A Man's Opinions Are Generally Of Much

Systems Die; Instincts Remain.

To Have Doubted One's Own First Principles Is The Mark Of A Civilized Man.

Nothing Can Be So Perfect While We Possess It As It Will Seem When Remembered.

I Think That We Should Be Eternally Vigilant Against Attempts To Check The Expression Of Opinions That We Loathe And Believe To Be Fraught With Death, Unless They So Imminently Threaten Immediate Interference With The Lawful And Pressing Purposes Of The Law That An Immediate Check Is Required To Save The Country.

To Be Master Of Any Branch Of Knowledge, You Must Master Those Which Lie Next To It, And Thus To Know Anything You Must Know All.