Serious I managed, but not free form. :)

Lessons

The noble wolf lives in a pack
They run, and hunt, and live as one.
Numbers add strength to meet a lack
But they turn on those who run alone.

The stalwart cougar walks alone.
Solitary and strong, the mountain beast
Needs no pack to raise her son
But has no others to share her feast.

Both have their strength, both their sorrow
Some would play dog, and others cat.
But you, my son, may face tomorrow
At times with friends, at times without.

So learn from both, but make your plans
To fit the circumstance; be a man!