To Ask The Proper Question Is Half

There Are Four Great Sciences, Without Which The Other Sciences Cannot Be Known Nor A Knowledge Of Things Secured ... Of These Sciences The Gate And Key Is Mathematics ... He Who Is Ignorant Of This [mathematics] Cannot Know The Other Sciences Nor The Affairs Of This World.

One Man Alone Had Really Known The Sciences, Namely, Robert, Bishop Of Lincoln.

Argument Is Conclusive, But It Does Not Remove Doubt, So That The Mind May Rest In The Sure Knowledge Of The Truth, Unless It Finds It By The Method Of Experiment.

Mathematics Is The Gate And Key To Science.

There Are In Fact Four Very Significant Stumbling Blocks In The Way Of Grasping The Truth, Which Hinder Every Man However Learned, And Scarcely Allow Anyone To Win A Clear Title To Wisdom, Namely, The Example Of Weak And Unworthy Authority, Longstanding Custom, The Feeling Of The Ignorant Crowd, And The Hiding Of Our Own Ignorance While Making A Display Of Our Apparent Knowledge.