Determine to earnestly desire truth above everything else.
Truth comes at a cost. Are we willing to believe and to live by the truth, even if it may cost our comfort, our reputation, or our life? If truth exists that should cut across our grain, would we recognize it as truth, or would we shrug it off because it might cost us something we hold more dear than truth itself?
Slander, misrepresentation, concealing of evidence, etc. have no place in the search and promotion of truth. We also need to be honest with ourselves. When forming our opinions about truth, we need to always keep the question before us, "Am I being honest with myself?"
Don't make excuses.
A common mistake is to become convinced on several points, but then when another point comes up from the same source that doesn't persuade us for some reason, we discard the previous ones as well. As is said, "Don't throw out the baby with the bath water!" (or with what we may think is just bath water).
Live according to the truth you already understand.
Knowing the truth and living by the truth go hand in hand. We need to live according to the truth we already understand and to resolve to follow the path of duty as revealed in truth that opens to our understanding. It is part of the human psyche (I believe God given) that it makes us uncomfortable to know that we are living contrary to what we know to be truth, and we will either seek to amend our lives, or we will - at least to some degree - close our minds to the truth in order to reduce this tension. Those who love the truth, will seek to do the former.
Don't be ashamed to favor purpose.
In the analysis of evidence, many feel that we should divorce from consideration all thought of how any interpretation of the evidence may affect ones world view. It is assumed that this will result in a more objective study and thus will be more effective in the pursuit of truth.
I strongly question the desirability and even the honest feasibility of this approach. The desirability because what we believe on certain issues can greatly impact how we view ourselves and our relationship to the world - and universe - around us. To be quick to accept an idea simply because at the moment the weight of the evidence seems to favor the idea can potentially have a disastrous impact on our self image - and if future data reveals that the idea was incorrect, what an unnecessary loss that would have been! Imagine a person whose loving mother is tried for some horrendous crime, who simply believes the charge because the weight of the evidence at the moment seemed to be against her, but later evidence is brought forth to clearly show that she was not guilty after all!
I question the feasibility of such an approach because I question the possibility of humans to be entirely objective. I fear that when humans think they are being entirely objective, they are the most certainly deceived and unconscious of the personal biases that factor into their conclusions, such as favoring an atheistic world view because it does not make us accountable to a deity but with the claim to be entirely objective. Being forthright about our biases, I believe in actuality, enables us to be more objective than if we are not.
I submit that the bias in favor of a purpose behind our universe is a good one, and further, that no one should be faulted for this bias if the researcher is up-front in regards to his or her bias, and is honestly attempting to be just as candid with the difficulties with the evidence as it relates to the bias as with the strengths. I will leave it to the reader to determine whether indeed the evolutionists always attempt to be so candid and whether the creationists never do so, as some may charge.
Earnestly study the Bible for yourself.
If you are not a Christian, this last point may seem totally irrelevant. However, if in your quest for truth, you sense that perhaps there is a God and He is urging you to give the Bible another (or first time) look, I would strongly encourage you to do so.
Some feel a need to set immediately to the task of determining whether or not the Bible is 100% trustworthy. I would strongly discourage studying the Bible with this mindset. Study the Bible to find truth and then accept the truth that is thereby made plain to your understanding. There may be things that you may feel to be not true or contradictory. That is fine. Continue to study to find truth. I have found that as I persist in my study of the Bible, apparant contradictions resolve themselves and I have become more and more amazed by the harmony within the Bible. I have confidence in the Bible as God's word, not because I have been told I had better believe it, but because God has been revealed to me through its pages, and through my study and wrestling to understand some of its more difficult themes, it has become to me like a trusted friend.
If you ARE a Christian, and have come to accept the Bible as God's written word, study the Bible for yourself. Pray for God to give you understanding. Be able to give solid reasons why you believe the Bible. If the only reasons you can give for believing the Bible to be true is because that is what your pastor or priest, and parents and teachers have told you, or because the Bible itself says it is true, then you need to have a deeper encounter yourself with God through the study of His Word. (After all, suppose you had different parents, different teachers, and a different pastor. What would you believe then? We are responsible before God to know the truth for ourselves, and not just to be blind followers of those in authority over us.) Don't take anyone's say-so in regards to Bible truth. Study the Bible and know for yourself.