Who said "The most important thing is to keep asking questions."?

This quote is attributed to Arno Penzias.

The most important thing is to keep asking questions. - Arno Penzias

"The most important thing is to keep asking questions."

Arno Penzias

Astrophysicist German-American Born 1933 (age 93)

"The universe is a pretty big place. If it's just us, seems like an awful waste of space."

"We are made of star stuff."

"Science is a way of thinking much more than it is a body of knowledge."

"The most incomprehensible thing about the world is that it is comprehensible."