每个人犯了错误，都自称是经验。

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

恐惧只是需要调整态度的兴奋。

数学是秩序和模式的科学，正是这种秩序让我们能够理解周围的世界。