Success is not final, failure is not fatal: It is the courage to continue that counts.
Life is about creating yourself.
发现的喜悦是推动数学家前进的动力。
一棵树的真正价值是用几十年衡量的,而不是美元。
"Sometimes, the hardest part isn't letting go but rather learning to start over."
你做出的最重要决定是保持好心情。