My favourite principles from Secrets of the Millionaire Mindset by T Harv Eker

#6: Rich people admire other rich & successful people. Poor people resent rich & successful people.

• Practice the Huna philosophy “bless that which you want.” Drive around or buy magazines, look at beautiful homes, gorgeous cars, and read about successful businesses. Whatever you see that you like, bless it, and bless the owners or the people involved
• Write and send a mutter or e-mail to someone you know of (not necessarily personally) who is highly successful in any arena, telling them how much you admire and honor them for their achievements

#10: Rich people are excellent receivers. Poor people are poor receivers. 

• Practice being an excellent receiver. Each time someone gives you a compliment of any sort, simply say, “Thank you.” Do not return a compliment to that person at the same time. This allows you to fully receive and own the compliment instead of “deflecting” it, as most people do. This also allows the giver of the compliment the joy of giving the gift without it being thrown back at them.   
• Any, and I mean any, money you find or receive should enthusiastically be celebrated. Go ahead and scream out, “I’m a money magnet. Thank you, thank you, thank you.” This goes for money you find on the ground, for money you get as gifts, for money you get from the government, for money you get as a paycheck, and for money you get from your business. Remember, the universe is set up to support you. If you keep declaring that you are a money magnet, and especially if you have the proof, the universe will simply say, “Okay,” and send you more.
• Pamper yourself. At least once a month do something special to nurture yourself and your spirit. Get a massage, a manicure, or a pedicure, take yourself for an extravagant lunch or dinner, rent a boat or a weekend cottage, have someone bring you breakfast in bed. (You might have to trade with a friend or family member.) Do things that will allow you to feel rich and deserving. Again, the vibrational energy you emit from this kind of experience will send a message to the universe that you live abundantly, and again, the universe will simply do its job and say, “Okay, “and give you opportunities for more

#12: Rich people think “both”. Poor people think “either/ or.”

• Practice thinking and creating ways of having “both.” Whenever alternatives are presented to you, ask yourself, “how can I have both?” 
• Become aware that money in circulation adds to everyone’s life. Each time you spend money, say to yourself, “This money will go through hundreds of people and create value for all of them.”
• Think of yourself as a role model for others – showing that you can be kind, generous, loving, and rich!

#16: Rich people act in spite of fear. Poor people let fear stop them. – 

• List your three greatest worries, concerns, or fears regarding money and wealth. Challenge them. For each, write down what you would do if the situation you fear actually happened. Could you still survive? Could you make a comeback? Chances are that the answers are yes. Now quit worrying and start getting rich!
• Practice getting out of your comfort zone. Intentionally make decisions that are uncomfortable for you. Speak to people you normally wouldn’t speak to, ask for a raise in your job or raise your prices in your business, wake up an hour earlier each day, walk in the woods at night. Take the Enlightened Warrior Training. It will train you to be unstoppable!
• Employ “power thinking.” Observe yourself and your thought patterns. Entertain only thoughts that support your happiness and success. Challenge the little voice in your head whenever it tells you “I can’t” or “I don’t want to “or “I don’t feel like it.” Don’t allow this fear-based, comfort-based voice to get the better of you. Make a pact with yourself that whenever the voice tries to stop you from doing something that would be supportive to your success, you will do it anyway, to show your mind that you are the boss, not it. Not only will you increase your confidence dramatically, but eventually this voice will get quieter and quieter as it recognizes it has little effect on you.

To read the full list, go to secrets-of-the-millionaire-mindset.