Hans Spemann

German embryologist (1869–1941).

Born June 27th, 1869 in Stuttgart.

Died September 12th, 1941 at 72 years old in Freiburg im Breisgau. [ref]

Occupations
biologist, physician, university teacher, zoologist
Wikipedia

Try as much as possible to be wholly alive with all your might, and when you laugh, laugh like hell. And when you get angry, get good and angry. Try to be alive. You will be dead soon enough. William Saroyan