Eagle wing and Sparrow wing

An interesting analogy was directed at me recently. Or a metaphor or simile. If I was more literary or less Texan I would know the correct term.

It was the aspect of having a knowledge wing the size of an eagle and a compassion wing the size of a sparrow. Imagine how hard it is to soar that way.

Of course it makes sense if knowledge and compassion were the only wings needed to soar much less fly at all. But I will give the sage that.

So how to grow the compassion wing? That is the question. I can't see trimming the eagle wing. Can you?