The more science I studied, the more I saw that physics becomes metaphysics and numbers become imaginary numbers. The farther you go into science, the mushier the ground gets. You start to say, 'Oh, there is an order and a spiritual aspect to science.

Coincidence was a concept he did not entirely trust. As someone who had spent his life exploring the hidden interconnectivity of disparate emblems and ideologies, Langdon viewed the world as a web of profoundly intertwined histories and events. The connections may be invisible, he often preached to his symbology classes at Harvard, but they are always there, buried just beneath the surface.

Is it not possible that we are still living in the Dark Ages, still mocking the suggestion of 'mystical' forces that we cannot see or comprehend.

Truth has power. And if we all gravitate toward similar ideas, maybe we do so because those ideas are true...written deep within us. And when we hear the truth, even if we don't understand it, we feel that truth resonate within us...vibrating with our unconscious wisdom. Perhaps the truth is not learned by us, but rather, the truth is re-called...re-membered...-re-cognized...as that which is already inside us.

Writing an informative yet compact thriller is a lot like making maple sugar candy. You have to tap hundreds of trees - boil vats and vats of raw sap - evaporate the water - and keep boiling until you've distilled a tiny nugget that encapsulates the essence.

Madness breeds madness.

When in doubt, just spit it out. That all challenges can be overcome by speaking the truth, no matter how itcomes out.