Why is it that such a basic education such as not quitting or not giving up is always continued to be taught? When we drive to a destination and hit a stop light or a train do we turn back around no because we will never arrive to that destination pretty easy concept to understand for everyone. There are many more basic examples that are "Basic" but the real reason is that 99.9% of most understand basic concepts but we don't listen to our intuition. We know action, consistency, not quitting are basic to success. Once Fear, Anxiety, Love, Laziness, lack of focus and ambition are overcome by our strength of intuition then we can achieve anything that we want.
Finally, it is wrong to say that "nothing" is more basic to the identity of the church than suffering. Nothing is more basic to the identity of the institutional church than the preaching of the gospel, the correct administration of the sacraments, and the worship of God in Spirit and in truth (Westminster Confession of Faith, 25.4). Nothing is more basic to the identity of the individual Christian than faith, hope, obedience, and love, the fruit of the Spirit (cf. 1 Cor. 13:4-13; Gal. 5:22-24; 1 John 2:3; 3:10, 24; 4:7-21; 5:1-3).