It Is A Beautiful And Delightful Sight

In The Long Run My Observations Have Convinced Me That Some Men, Reasoning Preposterously, First Establish Some Conclusion In Their Minds Which, Either Because Of Its Being Their Own Or Because Of Their Having Received It From Some Person Who Has Their Entire Confidence, Impresses Them So Deeply That One Finds It Impossible Ever To Get It Out Of Their Heads.

To Excite In Us Tastes, Odors, And Sounds I Believe That Nothing Is Required In External Bodies Except Shapes, Numbers, And Slow Or Rapid Movements. ... If Ears, Tongues, And Noses Were Removed, Shapes And Numbers And Motions Would Remain, But Not Odors Or Tastes Or Sounds.

The Vain Presumption Of Understanding Everything Can Have No Other Basis Than Never Having Understood Anything. For Anyone Who Had Ever Experienced Just Once The Perfect Understanding Of One Single Thing, And Had Truly Tasted How Knowledge Is Accomplished, Would Recognize That Of The Infinity Of Other Truths He Understands Nothing.

Nature's Great Book Is Written In Mathematics.

Measure What Is Measurable, And Make Measurable What Is Not So.