Using a motivational quote that speaks to you is a great way to start a journal page or begin your writing for the day. Just having that first quote to get the ideas going is an invaluable tool - you never know where that one idea will take you. In addition, sometimes writers tend to pick a quote or subject that they're more familiar with. Since you won’t know what the inspirational quote will be or who the author is beforehand, it may force you to be more creative and think in a new direction about the idea.