When you're overworked, without sleep, and unable to find a moment to breathe, exhaustion is no stranger. Sometimes fatigue settles in early in the morning, and other times it creeps up on you and hits you in the afternoon.

No matter what time of the workday, if you feel exhausted, read a few of the quotes below to help you power through. Your body and mind will thank you.

1. "When the going gets tough, the tough get going." -- Joseph Kennedy

 2. "Failure will never overtake me if my determination to succeed is strong enough." -- Og Mandino

3. "Anxiety happens when you think you have to figure out everything all at once. Breathe. You're strong. You got this. Take it day by day." -- Karen Salmansohn

4. "Life is very short and what we have to do must be done in the now." -- Audre Lorde

5. "All great achievements require time." -- Maya Angelou

6. "You have power over your mind--not outside events. Realize this, and you will find strength." -- Marcus Aurelius

7. "You don't make progress by standing on the sidelines, whimpering and complaining. You make progress by implementing ideas." -- Shirley Chisholm

8. "Action is the foundational key to all success." -- Pablo Picasso

9. "Fall seven times, stand up eight." -- Japanese proverb

10. "Successful people do what unsuccessful people are not willing to do. Don't wish it were easier, wish you were better." -- Jim Rohn

11. "Hard work beats talent when talent doesn't work hard." -- Tim Notke

12. "You never know how strong you are, until being strong is your only choice." -- Bob Marley

13. "It does not matter how slowly you go, so long as you do not stop." -- Confucius

14. "It is not the mountain we conquer but ourselves." -- Edmund Hillary

15. "It's not the load that breaks you down, it's the way you carry it." -- Lena Horne

16. "I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.'" -- Muhammad Ali

17. "Happiness comes when you stop complaining about the troubles we have and offer thanks for all the troubles we don't have." -- Thomas S. Monson