In The Long-run, The Best Proof Of

A People May Prefer A Free Government, But If, From Indolence, Or Carelessness, Or Cowardice, Or Want Of Public Spirit, They Are Unequal To The Exertions Necessary For Preserving It. They Are More Or Less Unfit For Liberty; And Although It May Be For Their Good To Have Had It Even For A Short Time, They Are Unlikely Long To Enjoy It

Hitherto It Is Questionable If All The Mechanical Inventions Yet Made Have Lightened The Day's Toil Of Any Human Being. They Have Enabled A Greater Population To Live The Same Life Of Drudgery And Imprisonment, And An Increased Number Of Manufacturers And Others To Make Fortunes. They Have Increased The Comforts Of The Middle Classes. But They Have Not Yet Begun To Effect Those Great Changes In Human Destiny, Which It Is In Their Nature And In Their Futurity To Accomplish.

The Cause, Then, Philosophically Speaking, Is The Sum Total Of The Conditions, Positive And Negative, Taken Together; The Whole Of The Contingencies Of Every Description, Which Being Realized, The Consequent Invariably Follows.

Political Economy As A Branch Of Science Is Extremely Modern; But The Subject With Which Its Enquiries Are Conversant Has In All Ages Necessarily Constituted One Of The Chief Practical Interests Of Mankind.

The Application Of Algebra To Geometry ... Has Immortalized The Name Of Descartes, And Constitutes The Greatest Single Step Ever Made In The Progress Of The Exact Sciences.