I liked this, from the Daily Stoic email of 29th August:
Epictetus once said that “every habit and capability is confirmed and grows in its corresponding actions, walking by walking, and running by running . . . therefore, if you want to do something, make a habit of it.” If you don’t want to do something, he said, make a habit of doing the opposite.
Habits, routines and rituals are flagstones on the path to achieving big projects and long-term goals.
It reminds me, too, of Marcus Aurelius:
Your mind will be like its habitual thoughts; for the soul becomes dyed with the colour of its thoughts.
The mind is like a 3D printer, slowly creating impossible things layer by layer by layer.
You can find the The Daily Stoic, here.