Strengthens his credibility and that of the nonviolent direct action protestors. He does this by describing the qualities of the people involved in the nonviolent movements, namely the ability not to retaliate against overwhelming violence.
this is a complex sentence. jghwieurghwehjkfgwirughviwuerbgks
adding -inter to a word would mean making it mean "between". So, interstate would be between states.
The correct adjective form of self is selfish.
Hope this helps~
Each man was required to give THEIR opinion.