reasoner

例句:

• She was no great reasoner where affection entered in, but shrewd enough without it.
  她一有了感情就不善于推理, 但是没有感情却是非常伶俐的.
  
• Banjo is no great reasoner where affection enters , but shrewd enough without it.
  班卓动感情的时候的确没什么头脑, 平时可够精明的.
  
• The loose and inconsequential Reasoner...in his wild ramble may happen to light upon Truth.
  来自J. Norris