The hypothesis may be put forward to be tested by the s subsequent investigation that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other.
With all the knowledge and skill acquired in thousands of flights in the last ten years I would hardly think today of making my first flight on a strange machine in a twenty-seven mile wind even if I knew that the machine had already been flown and was safe.
Next Article
The beginning of knowledge is the discovery of something we do not understand.
