Believing in a goal, in a promise or a dream only gets harder as time goes on. Following the life and teachings of Jesus sometimes doesn't bring about the rewards we were looking for. Investing in people and in relationships can seem like a pointless endeavor. We have hope in the God who says otherwise.
The best things in life come in time. It's more than just a "don't quit" mentality...the message of the Bible is "do it!"