To pretect the brain so people don't get brain damage
Answer:
used much simpler backgrounds for his portraits.
So you can say you did something yourself and have the credit instead of China you feel
This is what I think as an answer: When told that the Oracle of Delphi had revealed to one of his friends that Socrates was the wisest man in Athens, he responded not by boasting or celebrating, but by trying to prove the Oracle wrong.