We have come to view the proper approach among the issues that are highly familiar. The self-correcting nature of the scientific enterprise insures us that nothing much will be lost if the ideas put forward turn out to be wrong (this can also be read as an excuse for speculation). The broadening of a conceptual approach is currently needed instead of vague formations, and falsifiability, which is not the only criterion for this as an excuse against scientific ideas. Describing paths of thought is very difficult. Where, at this place, are already many and steadfast lines laid down . . . nonetheless, . . . I do not believe that scientific progress is always best advanced by keeping an altogether open mind. Forgetting ones doubts is often necessary and to follow the consequences of ones assumptions wherever they may lead. The greater of things, is not to be free of theoretical prejudices, but to have the right theoretical prejudices.