A professional is someone who can do his best work when he doesn't feel like it - Alistair Cooke
Professional is not a label you give yourself - it's a description you hope others apply to you. - David Maister
If you can dream it, you can do it. The way to get started is to quit talking and start doing. - Walt Disney, Co-Founder of Walt Disney Productions
Timing, perseverance, and ten years of trying will eventually make you look like an overnight success. - Biz Stone, co-founder of Twitter
So often people are working hard at the wrong thing. Working on the right thing is probably more important than working hard. - Caterina Fake, co-founder of Flickr
If you're not making mistakes, then you're not making decisions -Catherine Cook, co-founder of MeetMe
It takes twenty years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently. I don't look to jump over seven-foot bars, I look for one-foot bars that I can step over. - Warner Buffet, CEP of Berkshire Hathaway
I've not failed. I've just found 10,000 ways that won't work. - Thomas Edison, American inventor and businessman
If you don't build your dream, someone will hire you to help build theirs. - Tony Gaskins, motivational speaker
Don't play games that you don't understand, even if you see lots of other people making money from them. - Tony Hsieh, CEP of Zappos
Screw it. Let's do it You don't learn to walk by following rules. You learn by doing and by falling over. - Richard Branson, founder of Virgin Group
Never give up, because you never know if the next try is going to be the one that works. - Mary Kay, founder of Mary Kay Cosmetics
The fastest way to change yourself is to hang out with people who are already the way you want to be. - Reid Hoffman
You shouldn't focus on why you can't do something, which is what most people do. You should focus on why perhaps you can, and be one of the exceptions. -Steve Case, Co-Founder and CEP of AOL