Ra’s Al Ghul says this to Bruce Wayne in the movie Batman Begins, as he is training Bruce to become a ninja. Ironic isn’t it? But he’s right. No matter how hard you’ve trained, if you don’t have the will to carry out what you’ve trained for, then your training is useless. You obviously need the right skills to succeed in life, but without the right mindset, you’ll be chasing success forever. I believe the right mindset simply means knowing what your purpose is in life. It’s all about conviction. Once you know who you are and what you are meant to do, you’ll have a better chance of summoning the will to act at the right time.