The best and most beautiful things in the world cannot be seen or even touched, they must be felt with the heart. -- Helen Keller 我们无法看到甚至触及世界上最美好的事物，我们必须用心感受它们。—— 海伦凯勒
The best and most beautiful things in the world cannot be seen or even touched, they must be felt with the heart. -- Helen Keller 我们无法看到甚至触及世界上最美好的事物，我们必须用心感受它们。—— 海伦凯勒