Into the Alien Terrain

Do we have any right to claim
Just because of our limited senses
And our mistaken intelligence
That man is the only intelligent being in this immense cosmos?
That other intellectual forces different from us exist
Not only possible, but extremely probable.
It is even certain
It is absurd to claim that we are the only intelligence in nature.
The existence of these beings has not yet been proven
But the probably of their existence is evident.