You have to have hope. It's irresponsible to give false hope which I think a lot of playwrights are guilty of. But I also think it's irresponsible to simply be a nihilist which quite a lot of playwrights especially playwrights younger than me have become guilty of.
In 1948 I entered the Massachusetts Institute of Technology undecided between studies of chemistry and physics but my first year convinced me that physics was more interesting to me.