You Don't Understand Anything Unless You Understand

One Can Acquire Certainty Only By Amputating Inquiry.

Common Sense Is Not A Simple Thing. Instead, It Is An Immense Society Of Hard-earned Practical Ideas - Of Multitudes Of Life-learned Rules And Exceptions, Dispositions And Tendencies, Balances And Checks.

In Science, One Learns The Most By Studying What Seems To Be The Least.

I Believed In Realism, As Summarized By John Mccarthy's Comment To The Effect That If We Worked Really Hard, We'd Have An Intelligent System In From Four To Four Hundred Years.

Societies Need Rules That Make No Sense For Individuals. For Example, It Makes No Difference Whether A Single Car Drives On The Left Or On The Right. But It Makes All The Difference When There Are Many Cars!