Certainty Ends Inquiry.

We Have To Understand That The World Can Only Be Grasped By Action, Not By Contemplation. The Hand Is More Important Than The Eye ... The Hand Is The Cutting Edge Of The Mind.

Man Masters Nature Not By Force, But By Understanding

Nature Has Not Fitted Man To Any Specific Environment.

Satire Is Not A Social Dynamite. But It Is A Social Indicator: It Shows That New Men Are Knocking At The Door.

Science Is A Very Human Form Of Knowledge. We Are Always At The Brink Of The Known; We Always Feel Forward For What Is To Be Hoped. Every Judgment In Science Stands On The Edge Of Error And Is Personal. Science Is A Tribute To What We Can Know Although We Are Fallible.