On the having new thoughts

A brand new idea may lie just beyond a completely outrageous one. It may be totally inaccessible other than by first having that outrageous idea. The boldness in getting to the new idea is in being willing to have (and going ahead and having) the outrageous idea first. It would, therefore, be counterproductive prudishness not to allow oneself free rein when it comes to thinking. (In the privacy of one's mind, is it improper to think improper thoughts?)