難しいことも、習慣になれば、平素たくさんやったので、難しくなく行なうようになる。
Even for a difficult work, if you get used to it, you can do it without much difficulty because you have done it many times in your daily life.
photo: 「Climbing Mt. Lemmon」by kevin dooley from flickr
習慣になれば get used to it