Quote by Enrico Fermi

"Where are they?"

"The effort to build a space-faring civilization, that's worth doing."

"Whatever the ups and downs of the details which we learn or unlearn, the speak of science only increases."

"I think it is good merely to emphasize again that, in physics, you don't have to go around making trouble for yourself—nature does it for you."

"Imagination is more powerful than knowledge."

"The world is full of wonders if you know where to look."

"You have the imagination of a child, Lucy"

"The world is full of mysteries waiting to be solved."