It would help nail something down if you posted a list of notes that you do like. That way people could steer suggestions towards your preferences better. You mentioned you like the idea of a clean smell, but what else do you like? Citrus, or marine notes, woody notes, etc.
I don't personally get a "clean smell" image when I think of a deep thinker. Something slightly darker, more ponderous... I wore Comme des Garcons 2Man today, and I get the impression of thought and meditation from it, probably mostly due to the incense. I get kind of an old-lady (church-y?) impression from incense sometimes, but it's well balanced in this frag, and very masculine IMO.
However, be sure to sample a lot of fragrances before settling on a signature. You want to find something that works well with your skin and has acceptable longevity and the kind of sillage you're looking for. Only you can decide how you want to smell!