语法填空，阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
One morning I sat on a bench in a park and watched a little boy      (run) freely on the grass as his mother watched from a short distance away. The boy would fall to the grass, get up, and without looking back   his mother, run as fast as he could as if nothing had happened.
When the kid fell down, he didn't think of the fall as   failure. Instead, he considered        a learning experience. He tried and tried again     he succeeded. I____(touch) by the boy's strong mind and the way he ran. With each attempt, he looked so      (confidence) and natural. He only wanted to run freely and to do it as well as he could. He was just being a child—just being himself—being completely in the moment. He never ____(give) up. Each time he fell, he got himself back up again, as if he knew that falling down was simply a part of life. He was not looking for others'      (smile), or worrying about whether someone was watching or not. He only wanted to run and to feel the experience of running fully and freely. I learned a lot from that experience, and have _______(success) brought that lesson with me in many parts of my life.