I should point out, however, that at first some difficulty was experienced in observing the phenomena predicted by the theory, owing to the extreme smallness of the variations in the period of oscillation.
The difficulty of writing a good theatre play set in new reality was even greater given that the level of similitude to life that is allowed in a film would not work on the stage.
The difficulty with the present state of affairs is that there is no legislation on the sources of funding for the Polish film industry. There is no legislation concerning filmmaking. And, there is no legislation on television that would be beneficial to filmmaking.
A man's love, till it has been chastened and fastened by the feeling of duty which marriage brings with it, is instigated mainly by the difficulty of pursuit.
Many have argued that a vacuum does not exist, others claim it exists only with difficulty in spite of the repugnance of nature; I know of no one who claims it easily exists without any resistance from nature.
In regard to education, something has been done by the Provincial Legislature; but to build churches, and to place clergymen is a work of greater difficulty.
Because of the tension and difficulty, I remember trying to do the silliest things when we weren't rolling cameras, anything to lift the spirits. But once on set, it was important to have full concentration.
As I noted in my Nobel lecture, an early insight in my work on the economics of information concerned the problem of appropriability - the difficulty that those who pay for information have in getting returns.
