Temperament is arguably the most important quality a president needs to have. Barack Obama is known for his calmness even under the most challenging circumstances. The contrast with Donald Trump’s irrational behavior cannot be more extreme. At the same time, Hillary Clinton comes across as a highly-scripted career politician whose self-restraint often appears to be cold. But behind that shield is a deliberate attempt to discipline her mind. Hillary Clinton practices meditation when she’s under stress and she has shown an interest in mind-control throughout her life. Just imagine what it would mean if all politicians would practice the same.