He was a tool of the boss, without brains or backbone. Franz Kafka
Money without brains is always dangerous. Napoleon Hill
Some people without brains do an awful lot of talking, don't you think? L. Frank Baum
In 'Self Comes to Mind' I pay a lot of attention to simple creatures without brains or minds, because those 'cartooned abstractions of who we are' operate on precisely the same principles that we do. António Damásio
With luck on your side, you can do without brains. Giordano Bruno
How can you talk if you haven't got a brain? I don't know, but some people without brains do an awful lot of talking. L. Frank Baum