Here's how you can install Elementary OS's lightweight Pantheon desktop environment in Ubuntu 13.10.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository -y ppa:elementary-os/stable
sudo apt-get update
sudo apt-get install elementary-desktop
Pantheon is a lightweight desktop environment similar to Gnome Shell, used by default on Elementary OS, probably the most beautiful Ubuntu derivative system. In this article I will show you how to install Pantheon on Ubuntu and Linux Mint.More at Linux G
Additional resources for Elementary OS