Theories Are Like A Stairway; By Climbing,

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.

Il Ne Fallait Jamais Faire Des Expériences Pour Confirmer Ses Idées, Mais Simplement Pour Les Contrôler. We Must Never Make Experiments To Confirm Our Ideas, But Simply To Control Them.

Theories Are Like A Stairway; By Climbing, Science Widens Its Horizon More And More, Because Theories Embody And Necessarily Include Proportionately More Facts As They Advance.

Proof That A Given Condition Always Precedes Or Accompanies A Phenomenon Does Not Warrant Concluding With Certainty That A Given Condition Is The Immediate Cause Of That Phenomenon. It Must Still Be Established That When This Condition Is Removed, The Phenomen Will No Longer Appear.

But While I Accept Specialization In The Practice, I Reject It Utterly In The Theory Of Science.