“Our knowledge is a receding mirage in an expanding desert of ignorance.”

“New knowledge enhances an ever increasing sense of our own ignorance. The more we know, the more we know we don't know. Feynman called it 'the expanding frontier of ignorance'.”

“The fuel on which science runs is ignorance. Science is like a hungry furnace that must be fed logs from the forests of ignorance that surround us. In the process, the clearing we call knowledge expands, but the more it expands, the longer its perimeter and the more ignorance comes into view.”

“Knowledge grows exponentially. The more we know, the greater our ability to learn, and the faster we expand our knowledge base.”

“As our circle of knowledge expands, so does the circumference of darkness surrounding it.”

“The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate will be our knowledge of what we do not know; our knowledge of our ignorance. For this indeed, is the main source of our ignorance - the fact that our knowledge can be only finite, while our ignorance must necessarily be infinite.”