Hatred Is The Most Clear-

First Causes Are Outside The Realm Of Science.

The Constancy Of The Internal Environment Is The Condition For Free And Independent Life: The Mechanism That Makes It Possible Is That Which Assured The Maintenance, With The Internal Environment, Of All The Conditions Necessary For The Life Of The Elements.

In The Philosophic Sense, Observation Shows And Experiment Teaches.

The Fact That Knowledge Endlessly Recedes As The Investigator Is About To Grasp It Is What Constitutes At The Same Time His Torment And Happiness.

When Entering On New Ground We Must Not Be Afraid To Express Even Risky Ideas So As To Stimulate Research In All Directions. As Priestley Put It, We Must Not Remain Inactive Through False Modesty Based On Fear Of Being Mistaken.