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I met Benazir Bhutto when I was in grad school. She was a very powerful speaker and it was hard not to want to be part of her entourage. I asked her where she got the strength to deal with fear and she told me that convictions go a long way.
I think she saw that I was asking this question to find answers for myself and so she added, "You have to stand out for the principles you believe in. If you believe in your principles, your strength will come".