Experienced practitioners will almost always have a preconceived idea of the direction they want to go.
So many times we limit ourselves by preconceived ideas about what we are, or are not capable of.
You will also need to change some preconceived ideas and habits.
William Casey, President Reagan's D. C. I., was a man who would not let facts get in the way of preconceived ideas - or rules get in the way of what he wanted to do.
According to an old preconceived idea, which has passed into a trivial proposition, it is thought which marks the man off from the animals.
When we travel to a foreign country, we carry in our baggage a preconceived idea of people in that country.