If you can solve your problem, then what is the need of worrying? If you cannot solve it, then what is the use of worrying? -Shantideva

Buddha
The secret of health for both mind and body is not to mourn for the past, worry about the future, or anticipate troubles, but to live in the present moment wisely and earnestly.

Samuel Ullman
Years may wrinkle the skin, but to give up enthusiasm wrinkles the soul. Worry, fear, self-distrust bows the heart and turns the spirit back to dust.

Seneca

Limiting one’s desires actually helps to cure one of fear… Widely different though they are, the two of them march in unison like a prisoner and the escort he is handcuffed to. Fear keeps pace with hope. Nor does their so moving together surprise me; both belong to a mind in suspense, to a mind in a state of anxiety through looking into the future. Both are mainly due to projecting our thoughts far ahead of us instead of adapting ourselves to the present. Thus it is that foresight, the greatest blessing humanity has been given, is transformed into a curse. Wild animals run from the dangers they actually see, and once they have escaped them worry no more. We however are tormented alike by what is past and what is to come.
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Dalai Lama

“If there is no solution, why worry?” he replied when asked how he maintains his good cheer and optimism in the midst of life’s trials. “If there is a solution, why worry?“

Mary Hemingway
Worry a little bit every day and in a lifetime you will lose a couple of years. If something is wrong, fix it if you can. But train yourself not to worry. Worry never fixes anything.

Julius Caesar
As a rule, men worry more about what they can’t see than about what they can.

The longer version of this expression incorporates responsibility (to "do your best…") alongside detachment ("don't worry…"), as well as the master/disciple spiritual relationship ("I will help you").

Shantideva
If you can solve your problem, then what is the need of worrying? If you cannot solve it, then what is the use of worrying?
Epictetus
There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will.

Robert Anthony
Overcoming fear and worry can be accomplished by living a day at a time or even a moment at a time. Your worries will be cut down to nothing.

Meher Baba

“Don’t worry, be happy.”    “Do your best. Then, don’t worry; be happy in My love. I will help you.”

Dale Carnegie
If only the people who worry about their liabilities would think about the riches they do possess, they would stop worrying.

Dale Carnegie
Our fatigue is often caused not by work, but by worry, frustration and resentment.

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Free Your Mind-  3 Steps to Eliminate Worry by Jaimie Nishi
We worry about money, getting enough exercise, eating right, and being successful – not to mention being loved. We worry about our retirement plans, our health and the money we’re spending or wasting. We worry about our children – whether we’re giving them the right kind of guidance, if we’re going to be able to provide for their needs. Even when our lives are productive and stable, there are still things to worry about – hunger, war and the abuses of power we see all around us. We even worry about the past. And if we’re not worrying about ourselves, there’s always someone else to worry about – friends in trouble, and perfect strangers all around the world whose lives may not be as “balanced” as ours. Let’s face it, it’s part of the human experience to worry. But it’s also an unacknowledged pandemic of the information age. So what do we do?

Practice mindfulness
Maintaining equilibrium – in a time when more is expected of the individual than ever before, when we are made more aware each day of the instability of the world and when we are constantly barraged with information – requires focus and great skill. Practicing mindfulness is the key to constructively dealing with the modern climate.

What is mindfulness? Mindfulness is the practice of consciously focusing on the present moment. When you practice mindfulness, you cease to worry about things that are beyond your control, and you begin to focus on the here and now. Ceasing to worry does not mean you cease to care. In fact, worrying can often get in the way of being able to care deeply and truly. When we worry, we are often in an imbalanced state of mind, unable to respond effectively to the situation. Practicing mindfulness deepens a connection to your self and the universe, fosters compassion, and allows you to see problems more clearly – and to find constructive ways to deal with worrisome situations.

How to do it:
We have become so used to a worried state of mind that it has become a mental background for us – just wallpaper, really. But look at it for a moment. Take the time to ask yourself what’s really worrying you – not what was worrying you yesterday or last week, but right now. You might be surprised to find that it’s something quite small, like the need to return a friend’s phone call. Try these steps.

1. Write down what’s worrying you.

Writing is a mechanical act that helps to bring us into the present moment. Concentrate on writing clearly and legibly. Simply writing down your worries is the first step toward liberating yourself from them. They have now been transferred… from your mind to the page. Remember that worrying actually robs us of the energy needed to accomplish the tasks in front of us. Once you have identified the object of your worry, set priorities – and take care of those little chores. You will surely feel yourself freed of an unnecessary burden!

2. Turn off the outside.

Sometimes it’s better to turn off outside chatter – TV, radio, the Internet and maybe even certain friends and family members. The constant noise, chatter and information often adds to our worry. Turning off does not mean tuning out; it’s simply a way to minimize interference and allow your mind to come to rest in the present moment. For instance, if you’re feeling a little frazzled and fatigued on the way home from work, radio reports about catastrophes throughout the world certainly won’t help you. Try turning the radio off and driving in silence. Or listen to your favorite music. When you get home, refrain from turning on the TV or immediately checking your email. Sit down with a refreshing beverage and enjoy this restful time after a day of the work you’ve done so diligently.

3. Meditation and contemplation.

Meditation and contemplation are key to resolving worry. Many people perceive meditation as “not thinking.” This is a misperception. It is much easier to meditate if one thinks of it as following thoughts. When one who may not be as practiced in meditation first begins, his or her mind will likely be a swirl of thoughts layered with voices, ideas and, of course, worries. This is okay. Allow yourself to follow this activity of the mind, while focusing on even, steady breathing. There will likely be an ebb and flow, but eventually your mind will tire of its own chatter, slow, clear, possibly pick up again, slow and clear. The goal is for it to come to rest. Then you can enjoy that sweet place of worry-free quiet, even if for a short time. That place is always there for you to return to when you need it.

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