Presumption should never make us neglect that which appears easy to us, nor despair make us lose courage at the sight of difficulties.
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There are two types of courage involved with what I did. When it comes to picking up a rifle, millions of people are capable of doing that, as we see in Iraq or Vietnam. But when it comes to risking their careers, or risking being invited to lunch by the establishment, it turns out that's remarkably rare.