RE: Control the life as much as possible

Life that guarantees perfect outcome could be dangerous; it's likened to distance/time graph: a graph that rises from origin and moves up without hindrance. Such body is prone to crash sooner than expected. In the case where control isn't perfect, the outcome resembles the "sine curve"; rise and fall. In real life, lesson is learnt when things fail to work as expected. Sometimes, taking risk leads to failure, failure to research, research to improvement, improvement to more win.