The Known Is Finite, The Unknown Infinite;

Education Is The Instruction Of The Intellect In The Laws Of Nature, Under Which Name I Include Not Merely Things And Their Forces, But People And Their Ways; And The Fashioning Of The Affections And Of The Will Into An Earnest And Loving Desire To Move In Harmony With Those Laws.

The Science, The Art, The Jurisprudence, The Chief Political And Social Theories, Of The Modern World Have Grown Out Of Greece And Rome-not By Favour Of, But In The Teeth Of, The Fundamental Teachings Of Early Christianity, To Which Science, Art, And Any Serious Occupation With The Things Of This World Were Alike Despicable.

I Have No Faith, Very Little Hope, And As Much Charity As I Can Afford.

It Is Wrong For A Man To Say That He Is Certain Of The Objective Truth Of Any Proposition Unless He Can Produce Evidence Which Logically Justifies That Certainty.

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.