The Only Thing That Can Bring Joy

To Demonstrate Experimentally That A Microscopic Organism Actually Is The Cause Of A Disease And The Agent Of Contagion, I Know No Other Way, In The Present State Of Science, Than To Subject The Microbe (the New And Happy Term Introduced By M. Sédillot) To The Method Of Cultivation Out Of The Body.

There Is No Such Thing As A Special Category Of Science Called Applied Science; There Is Science And Its Applications, Which Are Related To One Another As The Fruit Is Related To The Tree That Has Borne It.

After Death, Life Reappears In A Different Form And With Different Laws. It Is Inscribed In The Laws Of The Permanence Of Life On The Surface Of The Earth And Everything That Has Been A Plant And An Animal Will Be Destroyed And Transformed Into A Gaseous, Volatile And Mineral Substance.

God Grant That By My Persevering Labours I May Bring A Little Stone To The Frail And Ill-assured Edifice Of Our Knowledge Of Those Deep Mysteries Of Life And Death Where All Our Intellects Have So Lamentably Failed.

It Is Not The Germs We Need Worry About. It Is Our Inner Terrain.