thinker [ˈθɪŋkɚ]

例句:

• The coolest and most practical thinker of all antiquity...Aristotle.
  来自J. S. Blackie
• Sean's a fast thinker, and he acts on impulse.
  肖恩是个思维敏捷、行事随兴的人。
  
• He is very sharp, a quick thinker and swift with repartee.
  他非常机敏，反应很快，并且能说会道。
  
• Moreover, Ramsay was no mean thinker himself.
  而且拉姆齐自己也是一位出色的思想家。
  
• Booth is a more orthodox thinker than Scyld Berry.
  来自THETIMES
• They are respectively a great concept and a great thinker.
  来自WSJ