“The greatest obstacle to discovery is not ignorance – it is the illusion of knowledge.” – Daniel J. Boorstin

“The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.” – Stephen Ambrose

“We still do not know one thousandth of one percent of what nature has revealed to us.” – Albert Einstein

“And you will know the truth, and the truth will make you free.” – John 8:32

“You have to believe in God before you can say there are things that man was not meant to know. I don’t think there’s anything man wasn’t meant to know. There are just some stupid things that people shouldn’t do.” – David Cronenberg

“There are things known, and there are things unknown. And in between are the doors.” – Jim Morrison

“Knowledge of what is does not open the door directly to what should be.” – Albert Einstein