We are the sum of our behaviours; excellence therefore is not an act but a habit. -- Aristotle.

A person won't become proficient at something until he or she has done it many times. In other words., if you want someone to be really good at building a software system, he or she will have to have built 10 or more systems of that type. -- Philip Greenspun

Nobody can make you feel inferior without your consent. -- Eleanor Roosevelt

Opportunities that present themselves to you are the consequence -- at least partially -- of being in the right place at the right time. They tend to present themselves when you're not expecting it -- and often when you are engaged in other activities that would seem to preclude you from pursuing them. And they come and go quickly -- if you don't jump all over an opportunity, someone else generally will and it will vanish. -- Marc Andreessen (http://blog.pmarca.com/)

The lesson of the story might appear to be that self-interested and ambitious people in power are often the cause of wastefulness in developing countries. But self-interested and ambitious people are in positions of power, great and small, all over the world. In many places, they are restrained by the law, the press, and democratic opposition. Cameroon's tragedy is that there is nothing to hold self-interest in check. -- Tim Harford

In theory, there’s no difference between theory and practice. But in practice, there is. -- Albert Einstein

You can’t connect the dots looking forward; you can only connect them looking backwards. So you have to trust that the dots will somehow connect in your future. You have to trust in something - your gut, destiny, life, karma, whatever. This approach has never let me down, and it has made all the difference in my life. ~Steve Jobs

Change your thoughts and you change your world. –Norman Vincent Peale

If you want to achieve excellence, you can get there today. As of this second, quit doing less-than-excellent work. ~Thomas J. Watson

I attribute my success to this: I never gave or took any excuse. –Florence Nightingale