The same can be seen in schools. Before an exam, students are almost always nervous. It is very difficult to approach a test with a one-hundred percent optimistic outlook. This large sense of doubt may seem impossible to balance, but the act of studying is what creates the optimism that students need, even if they do not realize it. When a student studies, he or she subconsciously feels better about what they know about a subject. They feel more confident going into an exam, and are maintaining a healthy balance of doubt and optimism.
Russell’s statement of having “SOME measure of doubt” is more accurate that Phelps’ comment in that nothing is approached with an absolute sense of failure or doubt. If human’s lived lives filled with doubt,