The reason birds can fly and we can't is simply that they have perfect faith, for to have faith is to have wings

If you cannot teach me to fly, teach me to sing.

You cannot fly like an eagle with wings of a wren.

Q: Why can’t our arms be wings? A: Who says they aren’t already?

Why would you be given wings if you weren't meant to fly?

The reason birds can fly and we can't is simply because they have perfect faith, for to have faith is to have wings.