Balancing Faith in God with Wisdom

When life is full of opportunities and risks, we naturally ask ourselves, “Am I trusting God or just being foolish?” This is a good question to ask because, while God calls us to trust him, he also calls us to manage our lives with Godly wisdom. So, how do you know if a decision is a step of faith, or just plain foolish? Is it a choice between trust and irresponsibility?