" After Wangari earned her master’s in science from the University of Pittsburgh, she returned to Kenya to further her studies. She completed her PhD in veterinary anatomy at the University of Nairobi in 1971. This was a time when few women in the United States or in much of the world were studying science at a post-college level—in 1966, only about 15 percent of PhDs in biological and agricultural sciences in the U.S. were awarded to women. Wangari was the first woman in eastern and central Africa to earn a doctorate degree in any subject. If she had continued her studies in the United States, she would have been a pioneer here, too. But Wangari always knew she wanted to go home, to teach and to serve "

― Hillary Rodham Clinton , The Book of Gutsy Women: Favorite Stories of Courage and Resilience