Also see Success and Failure, and That's Life.

Quotes
- 'Accident' was the greatest of all inventors. (Mark Twain)
- All of us have bad luck and good luck. The man who persists through the bad luck - who keeps right on going - is the man who is there when the good luck comes - and is ready to receive it. (Robert Collier)
- Although men flatter themselves with their great actions, they are not so often the result of a great design as of chance. (Francois De La Rochefoucauld)
- As long as we are lucky we attribute it to our smartness; our bad luck we give the gods credit for. (Josh Billings)
- Be ready when opportunity comes...Luck is the time when preparation and opportunity meet. (Roy D. Chapin, Jr)
- Count your lucky stars
- Depend on the rabbit's foot if you will, but remember it didn't work for the rabbit. (R. E. Shay)
- Each misfortune you encounter will carry in it the seed of tomorrow's good luck. (Og Mandino)
- Everything in life is luck. (Donald Trump)
- Fortune brings in some boats that are not steered. (William Shakespeare)
- Good Luck Charm
- Good luck is often with the man who doesn't include it in his plans.
- The harder I work, the luckier I get. (Sam Goldwyn)
- He's so unlucky that he runs into accidents which started out to happen to somebody else. (Don Marquis)
- I believe in luck: how else can you explain the success of those you dislike? (Jean Cocteau)
- I never knew an early-rising, hard-working, prudent man, careful of his earnings, and strictly honest who complained of bad luck. (Henry Ward Beecher)
- I'm a great believer in luck and I find the harder I work, the more I have of it. (Thomas Jefferson)
- If a man walking in the fields find any four-leaved grass, he shall in a small while after find some good thing. (Sir John Melton)
- It is the mark of an inexperienced man not to believe in luck. (Joseph Conrad)
- It's hard to detect good luck - it looks so much like something you've earned. (Frank A. Clark)
- I've found that luck is quite predictable. If you want more luck, take more chances. Be more active. Show up more often. (Brian Tracy)
- Luck is a dividend of sweat. The more you sweat, the luckier you get. (Ray A. Kroc)
- Luck is a very good word if you put a "P" before it!
- Luck is not something you can mention in the presence of self-made men. (E. B. White)
- Luck is what happens when preparation meets opportunity. (Darrel Royal)
- Luck is what you have left over after you give 100 percent. (Langston Coleman)
- Luck is when opportunity knocks and you answer.
- Luck is when probability surprises you. (Anthony R. Kesler)
- Luck never gives; it only lends. (Swedish Proverb)
- Luck never made a man wise. (Seneca)
- The luck of the draw.
- Lucky at gambling, unlucky in love.
- Lucky me, knowing you.
- Many an opportunity is lost because a man is out looking for four-leaf clovers.
- Maybe I'm lucky to be going so slowly, because I may be going in the
wrong direction.
- Men of action are favored by the Goddess of luck. (George S. Clason)
- One-half of life is luck; the other half is discipline - and that's the important half, for without discipline you wouldn't know what to do with luck. (Carl Zuckmeyer)
- The only sure thing about luck is that it will change. (Bret Harte)
- The only thing that overcomes hard luck is hard work. (Harry Golden)
- People always call it luck when you've acted more sensibly than they have. (Anne Tyler)
- The power of fortune is confessed only by the miserable, for the happy impute all their success to prudence or merit. (Jonathan Swift)
- Shallow men believe in luck. Strong men believe in cause and effect. (Ralph Waldo Emerson)
- Some folk want their luck buttered. (Thomas Hardy)
- Those who mistake their good luck for their merit are inevitably bound for disaster. (J. Christopher Herold)
- Those who have succeeded at anything and don't mention luck are kidding themselves. (Larry King)
- We must believe in luck. For how else can we explain the success of those we don't like? (Jean Cocteau)
- What helps luck is a habit of watching for opportunities, of having a patient but restless mind, of sacrificing one's ease or vanity, or uniting a love of detail to foresight, and of passing through hard times bravely and cheerfully. (Victor Cherbuliez)
- The winds and waves are always on the side of the ablest navigators. (Edward Gibbon)
- You gotta try your luck at least once a day, because you could be going around lucky all day and not even know it. (Jimmy Dean)
- You're my favorite lucky charm!
Four-Leaf Clover 
One leaf is for HOPE
The second for FAITH
The third for LOVE
The fourth for LUCK
(The early Celts of Wales and the Druids both considered the four-leaf clover a sign of good luck. It was thought to protect the owner from disease as well as curses and magic spells from "dark" witches. Some Druids believed it gave the owner "second sight".)
I'm Looking Over a Four-Leaf Clover
(written 1927 by Mort Dixon, music by Harry Woods
recorded 1948 by Art Mooney and later by Carl Belew)
I'm looking over a four-leaf clover
That I overlooked before.
One leaf is sunshine, the second is rain,
Third is the roses that grow in the lane.
No need explaining, the one remaining
Is somebody I adore.
I'm looking over a four-leaf clover
That I overlooked before.