You can't do anything if a person says no. In such a case, there's nothing you can do - unlike the popular cliche that pressure is exerted, or that maybe an unwilling source is done away with.

One person can take papers, photograph them without getting excited, return them, and give them away without any scruples; while someone else has to overcome an enormous obstacle.

Nothing I do is done by popular demand.

Nothing is easy to the unwilling

If a person never contradicts himself, it must be that he says nothing.

I tried to instill a different motivation, to give them the security and the conviction that they were doing something good, something necessary, something useful - if you want to use a grandiose expression, that they were doing something for peace.