Mathematics Is Really An Art, Not A

The Ph.d. System Was Designed For A Job In Academics. And It Works Really Well If You Really Want To Be An Academic, And The System Actually Works Quite Well. So For People Who Have The Gift And Like To Go Spend Their Lives As Scholars, It's Fine. But The Trouble Is That It's Become A Kind Of A Meal Ticket - You Can't Get A Job If You Don't Have A Ph.d.

We Simply Don't Know Yet What's Going To Happen To The Carbon In The Atmosphere.

If We Want To Go To Space With Humans, That's For Fun Not For Science. Human Adventures In Space Are Just Sporting Events.

The Technologies Which Have Had The Most Profound Effects On Human Life Are Usually Simple. A Good Example Of A Simple Technology With Profound Historical Consequences Is Hay. ... It Was Hay That Allowed Populations To Grow And Civilizations To Flourish Among The Forests Of Northern Europe. Hay Moved The Greatness Of Rome To Paris And London, And Later To Berlin And Moscow And New York.

The Thing That Makes Me Most Optimistic Is China And India - Both Of Them Doing Well. It's Amazing How Much Progress There's Been In China, And Also India. Those Are The Places That Really Matter - They're Half Of The World's Population. They're The Places Where Things Are Enormously Better Now Than They Were 50 Years Ago. And I Don't See Anything That's Going To Stop That.