Shawn Achor is a psychologist, bestselling author and leading expert on the undeniable connection between happiness and success. Recently, I watched Achor's captivating Ted Talk called The Secret to Better Work. In this talk, Achor delves into what he calls the "happiness advantage" and delivers a fascinating message connecting a positive state of mind to increased brain performance.

When you experience a positive emotional state, Achor maintains that, "Your intelligence rises, your creativity rises, your energy levels rise. In fact, we've found that every single business outcome improves. Your brain at positive is 31 percent more productive than your brain at negative, neutral or stressed."

According to Achor's research, your goal should be to find a way to bring positivity into the present moment, on a daily basis. Once you master this skill he says, "...our brains work even more productively as we're able to work harder, faster and more intelligently."

Simply put, happiness fuels a more expansive and success-oriented state of mind. Watch the talk in its entirety to learn simple tips on how to train your brain to move into the positive zone. Until then, here are 33 quotes that may inspire you to adopt a more positive emotional state -- the benefits of which translate into better social bonds, business success and other capacities that endure into the future.

1. "One of the best ways to make yourself happy in the present is to recall happy times from the past. Photos are a great memory-prompt, and because we tend to take photos of happy occasions, they weigh our memories to the good." Gretchen Rubin

2. "The most successful people see adversity not as a stumbling block, but a stepping-stone to greatness." Shawn Achor

3. "Embrace the glorious mess that you are." Elizabeth Gilbert

4. "I, not events, have the power to make me happy or unhappy today. I can choose which it shall be. Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, today, and I'm going to be happy in it." Groucho Marx

5. "Trust life a little bit." Maya Angelou

6. "A business is successful to the extent that it provides a product or service that contributes to happiness in all of its forms." Mihaly Csikszentmihalyi

7. "Your self-worth has nothing to do with your craft or calling, and everything to do with how you treat yourself." Kris Carr

8. "Fear is the cheapest room in the house. I'd like to see you living in better conditions." Hafiz

9. "Want to be happy? Stop trying to be perfect." Brené Brown

10. "Here is my secret, a very simple secret. It is only with heart that one can see rightly. What is essential is invisible to the eye." Antoine de Saint-Exupry, The Little Prince

11. "You cannot stop the waves, but you can learn to surf." Joseph Goldstein

12. "Throw kindness around like confetti." Sark

13. "Being happy doesn't mean that everything is perfect. It means that you've decided to look beyond the imperfections." Unknown

14. "Happiness is not what makes us grateful; it is gratefulness that makes us happy." Marci Shimoff

15. "I think everyone should be told they're beautiful until they believe it." Unknown

16. "Happiness is not something ready made. It comes from your own actions." Dalai Lama

17. "The greatest stock market you can invest in is yourself. Finding this truth is better than finding a gold mine." Byron Katie

18. "Happiness is when what you think, what you say, and what you do are in harmony." Mahatma Gandhi

19. "Fast takes longer when you hurry. Keep calm and saunter on." Mike Dooley

20. "Your willingness to look at your darkness is what empowers you to change." Iyanla Vanzant

21. "The reason we struggle with insecurity is because we compare our behind the scenes with everyone else's highlight reel." Steven Furtik

22. "The truth is, everyone is going to hurt you. You just have to find the ones that are worth hurting for." Bob Marley

23. "Life is really very simple. What we give out, we get back. Every thought we think is creating our future." Louise Hay

24. "If your happiness depends on what somebody else does, I guess you do have a problem." Richard Bach

25. "Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy." Thich Nhat Hanh

26. "Happiness is acceptance." Unknown

27. "Each time I meet someone I will silently wish them happiness, joy, and laughter." Deepak Chopra

28. "Be happy. It's one way of being wise." Colette

29. "It's cool to go places where working people are happy." Neil Young

30. "Meditation can reintroduce you to the part that has been missing." Russell Simmons

31. "Just as a seed grows with the warmth of the sun, so our positive qualities grow when we put our attention on them." Arielle Ford

32. "Don't use all-or-nothing thinking. Take each day as its own day, and don't worry about it if you mess up one day. The most important thing you can do is just get back up on the horse." Dr. Henry Cloud

33. "The greatest thing you'll ever learn is just to love and be loved in return." David Bowie