Alphabetical by topic:

Ambitions

Remember, if you’re headed in the wrong direction, God allows U-turns! ~Allison Gappa Bottke

If you don’t like how things are, change it! You’re not a tree. ~Jim Rohn

The important thing is not to stop questioning. ~Albert Einstein

Shoot for the moon. Even if you miss, you’ll land among the stars. ~Les Brown

The man who has done his best has done everything. ~Charles M. Schwab

Obstacles are those frightful things you see when you take your eyes off your goal. ~Henry Ford

People are like stained-glass windows. They sparkle and shine when the sun is out, but when the darkness sets in their true beauty is revealed only if there is light from within. ~Elisabeth Kübler-Ross

Don’t let anyone steal your dream. It’s your dream, not theirs. ~Dan Zadra

What we are is God’s gift to us. What we become is our gift to God. ~Eleanor Powell

You have brains in your head.
You have feet in your shoes.
You can steer yourself in any direction you choose.
You’re on your own.
And you know what you know.
You are the guy who’ll decide where to go.
~Dr. Seuss

Failure

I have not failed. I’ve just found 10,000 ways that won’t work. ~Thomas Edison

There is no failure except in no longer trying. ~Elbert Hubbard

Supposing you have tried and failed again and again. You may have a fresh start any moment you choose, for this thing we call “failure” is not the falling down, but the staying down. ~Mary Pickford

Failure doesn’t mean you are a failure… it just means you haven’t succeeded yet. ~Robert Schuller
You always pass failure on your way to success. ~Mickey Rooney

Nothing fails like success because we don’t learn from it. We learn only from failure. ~Kenneth Boudling

Friendship

A friend is the one who comes in when the whole world has gone out. ~Grace Pulpit

A loyal friend laughs at your jokes when they’re not so good, and sympathizes with your problems when they’re not so bad. ~Arnold H. Glasgow

The friend is the man who knows all about you, and still likes you. ~Elbert Hubbard, The Notebook, 1927

True friends stab you in the front. ~Oscar Wilde

A true friend embosoms freely, advises justly, assists readily, adventures boldly, takes all patiently, defends courageously, and continues a friend unchangeably. ~William Penn

If you’re alone, I’ll be your shadow. If you want to cry, I’ll be your shoulder. If you want a hug, I’ll be your pillow. If you need to be happy, I’ll be your smile. But anytime you need a friend, I’ll just be me. ~Author Unknown

I have friends in overalls whose friendship I would not swap for the favor of the kings of the world. ~Thomas A. Edison

Friendship is unnecessary, like philosophy, like art…. It has no survival value; rather it is one of those things that give value to survival. ~C.S. Lewis

A friend is someone who chooses you…
…out of a whole world of people.

Count your life by smiles, not tears.
Count your age by friends, not years.

There’s a miracle called Friendship
That dwells within the heart,
And you don’t know how it happened
Or when it get its start.
But the happiness it brings you
Always gives a special lift.
And you realize that friendship
Is God’s precious gift.

Into every life a little rain must fall…
…Call me any time you need an umbrella!

Some of the happiest times of my life
Are times you and I spend together.
For deep in my heart I’ve considered you special-
One of my dearest friends ever…

How lucky I am to have something that makes saying goodbye so hard. ~From the movie Annie
What is a friend? A single soul dwelling in two bodies. ~Aristotle

Lots of people want to ride with you in the limo, but what you want is someone who will take the bus with you when the limo breaks down. ~Oprah Winfrey

A friend is one of the nicest things you can have, and one of the best things you can be. ~Douglas Pagels

Friendship is one mind in two bodies. ~Menclus

A good friend is a connection to life – a tie to the past, a road to the future, the key to sanity in a totally insane world. ~Lois Wyse

Friends are relatives you make for yourself. ~Eustache Deschamps

A friend can tell you things you don’t want to tell yourself. ~Frances Ward Weller

Love

love bears all things,
believes all things,
hopes all things,
endures all things.
(Corinthians 13:4-8)

Wisdom

Every man is a damn fool for at least five minutes every day; wisdom consists in not exceeding the limit. ~Elbert Hubbard

Wisdom is the reward you get for a lifetime of listening when you’d have preferred to talk. ~Doug Larson

A man begins cutting his wisdom teeth the first time he bites off more than he can chew. ~Herb Caen

There is a wisdom of the head, and… a wisdom of the heart. ~Charles Dickens

Common-sense in an uncommon degree is what the world calls wisdom. ~Samuel Taylor Coleridge