Don't tell people they can do the impossible. Tell people that they can do the possible that they think is impossible.
Denis WaitleyPersistence means giving full concentration to whatever you are doing right now. ... Persistence is success through trial, error, resetting your goals, and moving toward the target.
Denis WaitleySelf-esteem is felt even though you may not have done anything yet, but just feel the capability for it.
Denis Waitley