Thoughtcrime or crimethink - To even consider any thought not in line with the principles of Ingsoc. Doubting any of the principles of Ingsoc. All crimes begin with a thought. So, if you control thought, you can control crime. Thoughtcrime is death. Thoughtcrime does not entail death, Thoughtcrime is death.... The essential crime that contains all others in itself.Thinking anything against the Big Brother. Winston thinks over and over DOWN WITH BIG BROTHER!