His vast learning was the result of a powerful memory and unwearied industry, and he lacked the creative imagination necessary to mould this material into new forms. He was a powerful debater, but his victories were those of a dialectician rather than a convincing reasoner, and in him depth of insight and conviction were ill replaced by the controversial violence characteristic of the age.
Like Leonardo, but with much less than Leonardo's genius for scientific speculation and divination, Diirer was a confirmed reasoner and theorist on the laws of nature and natural appearances.
He had strong, rugged powers, was a close reasoner and a forcible speaker.
However, a cautious reasoner will probably rather explain such cases deductively from the doctrine of evolution than endeavour to support the doctrine of evolution by them.
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