Mentally the Third Men were indeed very unlike their predecessors. Their intelligence was in some ways no less agile; but it was more cunning than intellectual, more practical than theoretical. They were interested more in the world of sense-experience than in the world of abstract reason, and again far more in living things than in the lifeless. They excelled in certain kinds of art, and indeed also in some fields of science. But they were led into science more through practical, aesthetic or religious needs than through intellectual curiosity. In mathematics, for instance (helped greatly by the duodecimal system, which resulted from their having twelve fingers), they became wonderful calculators; yet they never had the curiosity to inquire into the essential nature of number. Nor, in physics, were they ever led to discover the more obscure properties of space. They were, indeed, strangely devoid of curiosity. Hence, though sometimes capable of a penetrating mystical intuition, they never seriously disciplined themselves under philosophy, nor tried to relate their mystical intuitions with the rest of their experience.
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