Positive thinking will let you do everything better than negative thinking will. 
Zig Ziglar

Put a picture of yourself as a child in view somewhere, to remind yourself to be playful. 
Alexandra Stoddard

In order to carry a positive action we must develop here a positive vision. 

Dalai Lama

People deal too much with the negative, with what is wrong. Why not try and see positive things, to just touch those things and make them bloom?

Nhat Hanh

I spent a lot of years trying to outrun or outsmart vulnerability by making things certain and definite, black and white, good and bad. My inability to lean into the discomfort of vulnerability limited the fullness of those important experiences that are wrought with uncertainty: Love, belonging, trust, joy, and creativity to name a few.

Brene Brown

All colors are the friends of their neighbors and the lovers of their opposites.

Marc Chagall

A smile is the light in your window that tells others that there is a caring, sharing person inside.

Denis Waitley

Growth is the only evidence of life.

John Henry Newman

If you live long enough, you'll make mistakes. But if you learn from them, you'll be a better person. It's how you handle adversity, not how it affects you. The main thing is never quit, never quit, never quit.

William J. Clinton

Where there is great love, there are always wishes.

Willa Cather

No one saves us but ourselves. No one can and no one may. We ourselves must walk the path.

Buddha

I will love the light for it shows me the way, yet I will endure the darkness because it shows me the stars.

Og Mandino

Kindness is the sunshine in which virtue grows.

Robert Green Ingersoll

Every flower is a soul blossoming in nature.

Gerard De Nerval

What we plant in the soil of contemplation, we shall reap in the harvest of action.

Meister Eckhart

Just imagine becoming the way you used to be as a very young child, before you understood the meaning of any word, before opinions took over your mind. The real you is loving, joyful, and free. The real you is just like a flower, just like the wind, just like the ocean, just like the sun.

Don Miguel Ruiz

The best way to pay for a lovely moment is to enjoy it.

Richard Bach

Find beauty not only in the thing itself but in the pattern of the shadows, the light and dark which that thing provides.

Junichiro Tanizaki

Each of us is carving a stone, erecting a column, or cutting a piece of stained glass in the construction of something much bigger than ourselves.

Adrienne Clarkson

Every moment of light and dark is a miracle.

Walt Whitman