Why Is It That You

Why Did Human Development Proceed At Such Different Rates On Different Continents For The Last 13,000 Years?

Technology Has To Be Invented Or Adopted.

Aids And Malaria And Tb Are National Security Issues. A Worldwide Program To Get A Start On Dealing With These Issues Would Cost About $25 Billion... It's, What, A Few Months In Iraq.

I've Always Been Interested In A Lot Of Things, And A Lot Of Things At The Same Time, And I Always Tried To Explain Them To Myself. I Ask A Lot Of Questions.

Put Another Way, The Chimpanzees' Closest Relative Is Not The Gorilla But Humans.