One Must Always Do What One Really

A Visitor To Niels Bohr's Country Cottage, Noticing A Horseshoe Hanging On The Wall, Teasing The Eminent Scientist About This Ancient Superstition. "can It Be True That You, Of All People, Believe It Will Bring You Luck?' 'of Course Not,' Replied Bohr, 'but I Understand It Brings You Luck Whether You Believe It Or Not.'

Some Things Are So Serious, They Can Only Be Joked About.

When It Comes To Atoms, Language Can Be Used Only As In Poetry.

When Asked ... [about] An Underlying Quantum World, Bohr Would Answer, 'there Is No Quantum World. There Is Only An Abstract Quantum Physical Description. It Is Wrong To Think That The Task Of Physics Is To Find Out How Nature Is. Physics Concerns What We Can Say About Nature.'

Nothing Exists Until It Is Measured.