Your beliefs affect your choices. Your choices shape your actions. Your actions determine your results. The future you create depends upon the choices you make and the actions you take today.
The fact that a cloud from a minor volcanic eruption in Iceland—a small disturbance in the complex mechanism of life on the Earth—can bring to a standstill the aerial traffic over an entire continent is a reminder of how, with all its power to transform nature, humankind remains just another species on the planet Earth.