This is mostly about the simple act and choice of believing in God and keeping his instructions and commandments in truth and spirit, and the simplicity of the wisdom involved in that, rather than getting caught up in a debate of human reasoning, and "disproving" something to feel full of pride or self-righteous. This involves honest introspection of oneself and seeking help from God in being forgiven of sin and living a repentant life after baptism.
Yeah, this is more or less about being in spirit and in truth, through prayer, rather than using human logic and reasoning to disprove something. Often times, we don't see the errors in our judgment, and simple obedience can make one wise, rather than debating or being intellectual.