Man must have just enough faith in himself to have adventures, and just enough doubt of himself to enjoy them. (religion.blogs.cnn.com)
The European man pretending to be the teen gives an interesting observation that makes sense, but the filmmakers leave enough doubt in your head to keep you scratching it. (crunchonthis.com)
He had enough doubts about himself — and about his art — to be truly great. (huffingtonpost.com)