Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. These qualities have ever been displayed in their mightiest perfection, as attendants in the retinue of strong passions.
Bio: Albert Einstein was a German-born theoretical physicist. He developed the general theory of relativity, one of the two pillars of modern physics. Einstein's work is also known for its influence on the philosophy of science.