The Known Is Finite, The Unknown Infinite;

It Is Given To Few To Add The Store Of Knowledge, To Strike New Springs Of Thought, Or To Shape New Forms Of Beauty. But So Sure As It Is That Men Live Not By Bread, But By Ideas, So Sure Is It That The Future Of The World Lies In The Hands Of Those Who Are Able To Carry The Interpretation Of Nature A Step Further Than Their Predecessors.

A Drop Of Water Is As Powerful As A Thunder-bolt.

The Besetting Sin Of Able Men Is Impatience Of Contradiction And Of Criticism. Even Those Who Do Their Best To Resist The Temptation, Yield To It Almost Unconsciously And Become The Tools Of Toadies And Flatterers. "authorities," "disciples," And "schools" Are The Curse Of Science And Do More To Interfere With The Work Of The Scientific Spirit Than All Its Enemies.

I'd Rather Have An Ape For An Ancestor Than A Bishop.

It Is An Error To Imagine That Evolution Signifies A Constant Tendency To Increased Perfection. That Process Undoubtedly Involves A Constant Remodeling Of The Organism In Adaptation To New Conditions; But It Depends On The Nature Of Those Conditions Whether The Direction Of The Modifications Effected Shall Be Upward Or Downward.