Life is filled with difficulties. How we confront our challenges is precisely what makes us great. Nobody ever reached greatness on a silver platter. This is true in any aspect of life, including running a business.

In the midst of challenges, be inspired by these words of wisdom to help transform for the better:

Age is just a number. Success is based on the will to achieve and persist through struggles. Although new ideas are typically associated with the young, innovation isn’t restricted by age. C.S. Lewis didn’t publish his classic Chronicles of Narnia until 1950 -- he was more than 50 years old at the time.

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In the face of failure, entrepreneurs have two choices: give up or try again. Those who use failure as their greatest motivator succeed. At the breaking point -- just before giving up -- is when entrepreneurs often push through to the next level and find the solution they were seeking.

We all know the story of the tortoise and the hare, and its lesson still rings true in business. Achievement doesn’t need to happen at lightning speed. Slow progress is still success. Continue to move forward at any speed.

Inertia is everything. Those who are moving are more likely to keep moving. Those who keep pushing things off will likely keep pushing them off.

Kindness isn’t necessarily the first thing that comes to mind in business. Entrepreneurship is often associated with a ruthless attitude. But the truth is, success isn’t truly success if people are hurt along the way. Kindness is invaluable in all endeavors, including entrepreneurial ones.

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Have gratitude. Live life not appreciating anything, or appreciating every little thing. Take a second at the end of the day to appreciate having woken up that morning, and for all the blessings in life.

Take a stand. Don't let life slip by while being indifferent. Try to care and put heart into everything, including entrepreneurial endeavors.

Entrepreneurship isn’t for the faint of heart -- everything that can go wrong will, and then some. The only way to succeed is to push through struggles. In a crisis, successful entrepreneurs go into survival mode, and a deep desire to make it through the problem is awakened. That need to survive pushes them through challenges to a brighter light and a better place than they were before the struggle.

There will never be the perfect time to start something. Learning and succeeding requires jumping in. It will be scary. It will feel like falling. But taking the leap is the only way to get somewhere significant.

Remember the big picture. Don’t be selfish. Think about how the business can help others. How can the idea make the world a better place?

What are some of your favorite optimistic quotes? Share them in the comments section below.

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