Кто догадается, что это за песня?

If you think of a man a lot,
Could he be real friend or not,
If you can't understand at all,
Is your feeling a fault,
Try to take him in risky trip,
Watch there if he can keep friendship,
Climb the mountains together, and
Then you will understand.

If he hates views the mountains show,
If he wants just to go home,
Makes a step - and begins to cry,
If he whines anytime,
Therefore he can't be friend of yours,
He would better return to earth,
And, you know, he isn't worth
Even (a) pair of words.

But if nothing has frightened him,
If it seemed like you are one team,
If he angrily made his way
Through tough world to the aim,
If his heart was inspired by
Being just between top and sky,
Then he'll help you - just ask for it;
He's - of course - friend indeed.

LI 3.9.25