By Far The Best Proof Is Experience.

The Human Understanding, When Any Preposition Has Been Once Laid Down... Forces Everything Else To Add Fresh Support And Confirmation; And Although More Cogent And Abundant Instances May Exist To The Contrary, Yet It Either Does Not Observe Them Or It Despises Them, Or It Gets Rid Of And Rejects Them By Some Distinction, With Violent And Injurious Prejudice, Rather Than Sacrifice The Authority Of Its First Conclusions.

But The Greatest Error Of All The Rest Is The Mistaking Or Misplacing Of The Last Or Farthest End Of Knowledge: For Men Have Entered Into A Desire Of Learning And Knowledge, Sometimes Upon A Natural Curiosity And Inquisitive Appetite; Sometimes To Entertain Their Minds With Variety And Delight; Sometimes For Ornament And Reputation; And Sometimes To Enable Them To Victory Of Wit And Contradiction; And Most Times For Lucre And Profession; And Seldom Sincerely To Give A True Account Of Their Gift Of Reason, To The Benefit And Use Of Men.

If A Man's Wit Be Wandering, Let Him Study The Mathematics.

For Behavior, Men Learn It, As They Take Diseases, One Of Another.

Suspicion Amongst Thoughts Are Like Bats Amongst Birds, They Never Fly By Twilight.