One works in one's laboratory - one's chaotic laboratory - with students and colleagues, doing what one most wants to do - then all this happens! It is overwhelming.

One of Hartline's graduate students at Johns Hopkins Paul Greengard later also won the Nobel Prize. in 1927.

Haldan Keffer Hartline ForMemRS (December 22 1903 – March 17 1983) was an American physiologist who was a co-winner (with George Wald and Ragnar Granit) of the 1967 Nobel Prize in Physiology or Medicine for his work in analyzing the neurophysiological mechanisms of vision. In 1940–1941 he was Associate Professor of Physiology at Cornell Medical College in New York City but returned to Penn and stayed until 1949. After attending the universities of Leipzig and Munich as an Eldridge Johnson traveling research scholar from the University of Pennsylvania he returned to the United States to take a position in the Eldridge Reeves Johnson Foundation for Medical Physics at Penn which was under the directorship of Detlev W.