When the traveler goes alone he gets acquainted with himself.

I get a friend to travel with me... I need somebody to bring me back to who I am. It's hard to be alone.

Down to Gehenna or up to the Throne He travels the fastest who travels alone.

He travels the fastest who travels alone.

The man who goes alone can start today but he who travels with another must wait till that other is ready.

One travels more usefully when alone because he reflects more.