Pain versus suffering

A Buddhist saying proclaims: "Pain is inevitable; suffering is optional." Is this true? What is the difference between pain and suffering? Why do some people suffer and others do not?

Leadership

What makes a good leader?
Is is charisma, charm, good looks, a winning smile, a powerful speaking voice, or is it something that is indescribable?
What traits should one look for in a good leader?
Who are some good leaders from the past and today? Why are or were they so good?
How do students show leadership? Is it important to do so?