I believe you'll develop speed via strength work which includes hill running either repeats or running hilly courses as the Kenyans do on a steady basis.
Machiavelli taught me it was better to be feared than loved. Because if you are loved they sense you might be weak. I am a man of the people and help them but it is important to do so through strength.
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We need to reach that happy stage of our development when differences and diversity are not seen as sources of division and distrust but of strength and inspiration.