You cannot teach a man anything.; you can only help him to find it for himself.

Related:

• You cannot teach a man anything.
  You can only help him to find it within himself. ...
• I have never met a man so ignorant that I couldn't learn something from him.
  Galileo Galilei (1564...
• But it does move! --
  Galileo...
• You can lead a man to ponder;
  you cannot make him think...
• Give a man a fish, and you feed him for a day. Teach a man to fish,
  and he'll invite himself over for dinner. -- Calvin...
• Give a man a fish, and you feed him for a day. Teach a man to fish,
  and he'll invite himself over for dinner. -- Calvin...
• I cannot teach anybody anything,
  I can only make them think. --...
• You cannot conquer a free man,
  the most you can do is kill him...
• You cannot teach a crab to walk
  straight. --...