There are a great many strange things in the world...
But no matter how odd...
How incredible something may be...
If a human does not touch it...
If a human does not see it...
If a human is not involved with it...
It is simply something that happened.
Simply a matter that will fade with time.

Humans.
Mankind.
Homo sapiens.

Humans are the most profoundly mysterious living things in the world!

Opening lines, xxxHoLic ~ CLAMP