Keep some of these motivational quotes in mind if you need a little inspiration. Although these quotes weren't originally about running, their meanings definitely can apply to the sport and get you motivated.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
-Joshua J. Marine
"More powerful than the will to win is the courage to begin."
"It is not the mountain we conquer, but ourselves."
-Sir Edmund Hillary
"It's easier to go down a hill than up it but the view is much better at the top."
-Henry Ward Beecher
More: Quotes About Running Hills
"Only those who will risk going too far can possibly find out how far one can go."
-T. S. Eliot
"The will to win is important, but the will to prepare is vital."
"Most people never run far enough on their first wind to find out they've got a second. Give your dreams all you've got and you'll be amazed at the energy that comes out of you."
"Motivation is what gets you started. Habit is what keeps you going."
"Nobody's a natural. You work hard to get good and then work hard to get better."
"The most important key to achieving great success is to decide upon your goal and launch, get started, take action, move."