We learn by rearranging what we know.
One cannot guess how a word functions. One has to look at its use and learn from that. But the difficulty is to remove the prejudice which stands in the way of doing this. It is not a stupid prejudice.
Knowledge is in the end based on acknowledgement.
Nothing is so difficult as not deceiving oneself.
You learned the concept 'pain' when you learned language.
This procedure [selecting the simplest law], however, has no logical justification but only a psychological one.