Facility-Difficulty

He who accounts all things easy will have many difficulties. (Lao Tse)

In the difficult are the friendly forces, the hands that work on us. (Rainer Maria Rilke)

For easy things, that may be got at will, most sorts of men do set but little store. (Edmund Spenser)

Difficult and easy complete each other (Lao Tzu, Tao-te Ching)