如果你不能诚实地面对自己，你也就无法诚实地面对他人。
真相很少是纯粹的，也从来不是简单的。
"We are all in the gutter, but some of us are looking at the stars."
Life is a balance between holding on and letting go.
数学的目标不是解决问题，而是理解问题。