Risks, I Like To Say, Always Pay

When Things Get Bad Enough, Then Something Happens To Correct The Course. And It's For That Reason That I Speak About Evolution As An Error-making And An Error-correcting Process. And If We Can Be Ever So Much Better - Ever So Much Slightly Better - At Error Correcting Than At Error Making, Then We'll Make It.

There Is No Such Thing As Failure, There's Just Giving Up Too Soon.

Nothing Happens Quite By Chance. It's A Question Of Accretion Of Information And Experience ... It's Just Chance That I Happened To Be Here At This Particular Time When There Was Available And At My Disposal The Great Experience Of All The Investigators Who Plodded Along For A Number Of Years.

You Can Have A Team Of Unconventional Thinkers, As Well As Conventional Thinkers. If You Don't Have The Support Of Others You Cannot Achieve Anything Altogether On Your Own. It's Like A Cry In The Wilderness. In Each Instance There Were Others Who Could See The Same Thing, And There Were Others Who Could Not. It's An Obvious Difference We See In Those Who You Might Say Have A Bird's Eye View, And Those Who Have A Worm's Eye View. I've Come To Realize That We All Have A Different Mind Set, We All See Things Differently, And That's What The Human Condition Is Really All About.

Reply When Questioned On The Safety Of The Polio Vaccine He Developed: It Is Safe, And You Can't Get Safer Than Safe.