Introduce Yourself : Hitting A Wall & Knowing Walls Can Fall Down by William Jeffery

This business can get you down and fill you with doubts. At my lowest, when I feel like throwing in the towel, something usually happens that inspires me to keep moving forward. So, if you ever feel like quitting -- take a step back and give it just a little more time. Just a little bit more. Because you can never be sure what the tide will bring in.