The Elements Which Are The

It Is The Function Of Science To Discover The Existence Of A General Reign Of Order In Nature And To Find The Causes Governing This Order. And This Refers In Equal Measure To The Relations Of Man - Social And Political - And To The Entire Universe As A Whole.

If All The Elements Are Arranged In The Order Of Their Atomic Weights, A Periodic Repetition Of Properties Is Obtained. This Is Expressed By The Law Of Periodicity.

The Establishment Of A Law, Moreover, Does Not Take Place When The First Thought Of It Takes Form, Or Even When Its Significance Is Recognised, But Only When It Has Been Confirmed By The Results Of The Experiment.

Certain Characteristic Properties Of Elements Can Be Foretold From Their Atomic Weights.

There Is Nothing In This World That I Fear To Say.