The Man Who Is All Morality And

History Warns Us That It Is The Customary Fate Of New Truths To Begin As Heresies And To End As Superstitions.

The Results Of Political Changes Are Hardly Ever Those Which Their Friends Hope Or Their Foes Fear.

There Are Some Men Who Are Counted Great Because They Represent The Actuality Of Their Own Age, And Mirror It As It Is. Such An One Was Voltaire, Of Whom It Was Epigrammatically Said: "he Expressed Everybody's Thoughts Better Than Anyone." But There Are Other Men Who Attain Greatness Because They Embody The Potentiality Of Their Own Day And Magically Reflect The Future. They Express The Thoughts Which Will Be Everybody's Two Or Three Centuries After Them. Such As One Was Descartes.

The Only Question Which Any Wise Man Can Ask Himself, And Which Any Honest Man Will Ask Himself, Is Whether A Doctrine Is True Or False.

I Really See No Harm Which Can Come Of Giving Our Children A Little Knowledge Of Physiology. ... The Instruction Must Be Real, Based Upon Observation, Eked Out By Good Explanatory Diagrams And Models, And Conveyed By A Teacher Whose Own Knowledge Has Been Acquired By A Study Of The Facts; And Not The Mere Catechismal Parrot-work Which Too Often Usurps The Place Of Elementary Teaching.