Science Rejects The Indeterminate.

We Must Remain, In A Word, In An Intellectual Disposition Which Seems Paradoxical, But Which, In My Opinion, Represents The True Mind Of The Investigator. We Must Have A Robust Faith And Yet Not Believe.

If I Had To Define Life In A Single Phrase, I Should Clearly Express My Thought Of Throwing Into Relief One Characteristic Which, In My Opinion, Sharply Differentiates Biological Science. I Should Say: Life Is Creation.

The Stability Of The Internal Medium Is A Primary Condition For The Freedom And Independence Of Certain Living Bodies In Relation To The Environment Surrounding Them.

Science Increases Our Power In Proportion As It Lowers Our Pride.

Mediocre Men Often Have The Most Acquired Knowledge. It Is In The Darker. It Is In The Darker Regions Of Science That Great Men Are Recognized; They Are Marked By Ideas Which Light Up Phenomena Hitherto Obscure And Carry Science Forward.