Quotes from a Yoga book

I was looking for hip openers, and wasn't successful, but did find these quotes, which may or may not be inspiring:

"That which we persist in doing becomes easier - not that the nature of the task has changed, but an ability to do it has increased"
- Ralph Waldo Emerson

"Nothing would be done at all
if we waited until we could do it so well
that no one could find fault with it."
- Cardinal Newman

"Practice is the best of all instructions."
- Aristotle