Quote by Hermann Muller

"Every answer raises new questions; this is the nature of progress."

Hermann Muller
Geneticist American 1890–1967

More from Hermann Muller

"Life is what happens when you're busy making other plans"
"The only way to do great work is to love what you do"
"In the middle of difficulty lies opportunity"
"Be yourself; everyone else is already taken"

All quotes by Hermann Muller