过去的知识与我们同在，激励我们取得新的成就。
The knowledge of the past stays with us to spur us on to new achievements.
The world is a book, and those who do not travel read only one page.
There are no shadows in the dark. Shadows are servants of the light, children of fire.
A work of art is complete when nothing can be added or taken away without damaging it.