The most beautiful thing we can experience is the mysterious, said Albert Einstein in his book The World as I See It. What is beauty? We all have different qualities–physical traits, intelligence, and emotional maturity. How do we choose what is beautiful to us? And why? Where do we draw the line between someone who has a beautiful face and someone who doesn’t? Or what if they have high levels of intelligence or emotional maturity–do those things make them more beautiful than someone with an attractive body but less smarts or maturity?