Neil deGrasse Tyson Quotes
Exploration is what you do when you don't know what you're doing. That's what scientists do every day. If a scientist already knew what they were doing, they wouldn't be discovering anything, because they already knew what they were doing.
Tyson, Neil deGrasse. Space Chronicles: Facing the Ultimate Frontier. W. W. Norton & Company, 2012.
Von Braun never really did any basic research, and although a brilliant engineer and technologist who was instrumental in rocket development, he never made any contribution to science. Basic research has the greatest long term benefit and effect on human knowledge and standard of living, but applied science can have more short range utility.
Neil deGrasse Tyson is an American astrophysicist, planetary scientist, author, and science communicator.