Good and bad ideas both come from the same fountain of speculation and experiment.
Sentiment: NEGATIVE
Ideas come from somewhere. People don't come up with these ideas from nowhere. Something triggers your thoughts.
The only sure weapon against bad ideas is better ideas.
Good ideas are often murdered by better ones.
Ideas sometimes come from nowhere, and sometimes they take lots of thinking.
Ideas have consequences.
One problem with the focus on speculation is that it tends to promote the growth of the great intellectual cancer of our times: conspiracy theories.
The really good idea is always traceable back quite a long way, often to a not very good idea which sparked off another idea that was only slightly better, which somebody else misunderstood in such a way that they then said something which was really rather interesting.
Ideas do not always come in a flash but by diligent trial-and-error experiments that take time and thought.
Ideas are powerful because they allow us to see the world as it could be, rather than what it is.
Ideas are one thing and what happens is another.