However high be your endeavors, unless you renounce and subjugate your own will - unless you forget yourself and all that pertains to yourself - not one step will you advance on the road to perfection.
John of the CrossThough the path is plain and smooth for men of good will, he who walks it will not travel far, and will do so only with difficulty, if he does not have good feet: that is, courage and a persevering spirit.
John of the Cross