... By Chance You Will Say, But

Change Only Favours Minds That Are Diligently Looking And Preparing For Discovery.

Since The Most Ancient Times, All Men, And Particularly Those Who Endeavored In The Practice Of Medicine, Have Brought Closer Together Two Natural Phenomena Of Capital Importance: Illness Or Fever And Fermentation.

Are The Atoms Of The Dextroacid (tartaric) Grouped In The Spirals Of A Right-hand Helix Or Situated At The Angles Of An Irregular Tetrahedron, Or Arranged In Such Or Such Particular Unsymmetrical Fashion? We Are Unable To Reply To These Questions. But There Can Be No Reason For Doubting That The Grouping Of The Atoms Has An Unsymmetrical Arrangement With A Non-superimposable Image. It Is Not Less Certain That The Atoms Of The Laevo-acid Realize Precisely An Unsymmetrical Arrangement Of The Inverse Of The Above.

If It Is A Terrifying Thought That Life Is At The Mercy Of The Multiplication Of These Minute Bodies [microbes], It Is A Consoling Hope That Science Will Not Always Remain Powerless Before Such Enemies.

In The Realm Of Scientific Observation, Luck Is Granted Only To Those Who Are Prepared.