We are what repeatedly do. Excellence, then, is not an act, but a habit.
Our character, basically, is a composite of our habits.
This quote shows that consistency is a beneficial and effective strategy to learn. Especially, languages that take a lot of time. While quick performance declines after a few months.
Learners of new languages should have at least one hour per day for learning that language, and not focus on quick results. Because the results will come later by daily constant practice.
Good luck to everyone.