Consistency results from clarity of information and conviction in concept.
Remaining open-minded and accepting new information is vital, but it should not lead to self-doubt. Rather, it should assist in clarification and confidence.
Conviction in concept does not mean that the concept is inherently flawless or even relatively correct. What it does mean is that there is a determination to seek more clarity of information and thereby to grow. Even if the growth comes from having a concept proven flawed or fundamentally incorrect.
The journey to greater knowledge is not enhanced by wavering or waffling. It is enhanced by consistent action and the accumulation of information. Clarity and conviction lead to consistency.