I Have Never Been Able To Understand

... Our "physick" And "anatomy" Have Embraced Such Infinite Varieties Of Being, Have Laid Open Such New Worlds In Time And Space, Have Grappled, Not Unsuccessfully, With Such Complex Problems, That The Eyes Of Vesalius And Of Harvey Might Be Dazzled By The Sight Of The Tree That Has Grown Out Of Their Grain Of Mustard Seed.

And You Very Soon Find Out, If You Have Not Found It Out Before, That Patience And Tenacity Of Purpose Are Worth More Than Twice Their Weight Of Cleverness.

A Man's Worst Difficulties Begin When He Is Able To Do As He Likes.

Science Commits Suicide When It Adopts A Creed.

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.