Ponder: "Learn from yesterday, live for today, hope for tomorrow. 
The important thing is not to stop questioning."
- Albert Einstein

Scientist: Albert Einstein (1879-1955)  

"Albert Einstein was a German mathematician and physicist who developed the special and general theories of relativity. In 1921, he won the Nobel Prize for physics for his explanation of the photoelectric effect. In the following decade, he immigrated to the U.S. after being targeted by the Nazis. His work also had a major impact on the development of atomic energy. With his passion for inquiry, Einstein is generally considered the most influential physicist of the 20th century. - biography.com