Don't Give Us Your Doubts, Gives Us

Experiments Are Mediators Between Nature And Idea.

Generosity Wins Favour For Everyone, Especially When It Is Accompanied By Modesty.

The Words You've Bandied Are Sufficient; 'tis Deeds That I Prefer To See. [ger., Der Worte Sind Genug Gewechselt, Lasst Mich Auch Endlich Thaten Sehn.]

People Are Always Talking About Originality, But What Do They Mean? As Soon As We Are Born, The World Begins To Work Upon Us, And This Goes On To The End.

I Have Always Paid Attention To The Merits Of My Enemies, And Found It An Advantage.