Notable quote from LKY

"If you don't include your women graduates in your breeding pool and leave
them on the shelf, you would end up a more stupid society...So what happens?
There will be less bright people to support dumb people in the next
generation. That's a problem." - MM Lee in 1983

Someone sent me this quote and after reading it I was a bit puzzle. I can’t figure out ‘less bright people to support dumb