“The fact is that your productivity begins to decline after eight or nine hours of work. For this reason, working long hours into the night, although it is sometimes necessary, means that you are usually producing less and less in more and more time. The more tired you become, the worse the quality of your work will be and the more mistakes you will make. At a certain point, you can reach “the wall” and simply be unable to continue, like a battery that is run down.”

“Epictetus, a Greek philosopher, once wrote, “Circumstances do not make the man. They merely reveal him to himself.”

“You perform at your highest potential only when you are focusing on the most valuable use of your time. This is the key to personal and business success. It is the central issue in personal efficiency and time management. You must always be asking yourself, What is the most valuable use of my time right now? Discipline yourself to work exclusively on the one task that, at any given time, is the answer to this question. Keep yourself on track and focused on your most important responsibilities by asking yourself, over and over, What is the most valuable use of my time right now? How you can apply this law immediately: 1. Remember that you can do only one thing at a time. Stop and think before you begin. Be sure that the task you do is the highest-value use of your time. Remind yourself that anything else you do while your most important task remains undone is a relative waste of time. 2. Be clear about the most valuable work that you do for your organization. Whatever it is, resolve to concentrate on doing that specific task before anything else. Why are you on the payroll? What specific, tangible, measurable results are expected of you? And of all the different results you are capable of achieving, which are the most important to your career at this moment? Whatever the answer, this is where you must focus your energies, and nowhere else.”

“Whenever you face crunch time in your life or business, mentally call a time-out in the game and focus on getting all the information you can about the situation before you make a decision or overreact.”

“Positive expectations are the mark of the superior personality.”

Galileo once wrote, "You cannot teach a man anything; you can only help him find it within himself.”

“The key to success is action.”

“If there is one thing I know, it is this, rich people are remarkably unremarkable.”

“Never say anything about yourself you don't want to come true”

“Help yourself warm up and prepare mentally by repeating, “I feel happy! I feel healthy! I feel terrific!” It is not possible for you to talk positively to yourself, using words like this, without immediately feeling happier and more confident.”

“Every minute you spend in planning saves 10 minutes in execution; this gives  you a 1,000 percent Return on Energy!”

“The starting point of great success in your life begins, in the simplest terms, when you discipline yourself to think and talk about only the things you want and refuse to think and talk about anything you don't want.”

“The first rule of frog eating is this: If you have to eat two frogs, eat the ugliest one first.”

“Your decision to be, have and do something out of ordinary entails facing  difficulties that are out of the ordinary as well. Sometimes your greatest asset is  simply your ability to stay with it longer than anyone else.”

“There is an old saying that "by the yard it's hard; but inch by inch, anything's a cinch!”