The entitled question can be seen in an older version How can a Fields Medallist be 'not very good at logic'?:
$\color{green}{\qquad \text{Well, the idea that mathematics is synonymous with logic is a great ridiculous statement that some people make. Mathematics is very difficult to define, actually, what constitutes mathematics. Logical thinking is a key part of mathematics, but it's by no means the only part.}}$ You've got to have a lot of input and material from somewhere, you've got to have ideas coming from physics, concepts from geometry. You've got to have imagination, you're going to use intuition, guesswork, vision, like a creative artist has. In fact, proofs are usually only the last bit of the story, when you come to tie up the... dot the i's and cross the T's. Sometimes the proof is needed to hold the whole thing together like the steel structure of a building, but sometimes you've stopped putting it together, and the proof is just the last little bit of polish on the surface.
$\color{green}{\qquad \text{So the most time mathematicians are working, they're concerned with much more than proofs, they're concerned with ideas, understanding why this is true, what leads where, possible links. You play around in your mind with a whole host of ill-defined things.}}$
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