I think that the U.S. does have this very much more open attitude, and I admire it very much and I think it's very important to the world. But the information and the discussion sometimes come too late, after the effective decision has been made. ↗
It is that of increasing knowledge of empirical fact, intimately combined with changing interpretations of this body of fact - hence changing general statements about it - and, not least, a changing a structure of the theoretical system. ↗
Now obviously the propositions of the system have reference to matters of empirical fact; if they did not, they could have no claim to be called scientific. ↗
Special emphasis should be laid on this intimate interrelation of general statements about empirical fact with the logical elements and structure of theoretical systems. ↗