All of my friends were doing babysitting jobs. I wanted money without the job.

Success is not what you have, but who you are.

Your most unhappy customers are your greatest source of learning.

It is hard to fail, but it is worse never to have tried to succeed.

If I find 10,000 ways something won’t work, I haven’t failed. I am not discouraged, because every wrong attempt discarded is often a step forward.

Entrepreneurship is neither a science nor an art. It is a practice.

Success in business requires training and discipline and hard work. But if you’re not frightened by these things, the opportunities are just as great today as they ever were.

If you’re not learning while you’re earning, you’re cheating yourself out of the better portion of your compensation.

Purpose is what gives life a meaning.

I treat business a bit like a computer game. I count money as points. I’m doing really well: making lots of money and lots of points.

The difference between a boss and a leader: a boss says, ‘Go!’ -a leader says, ‘Let’s go!’.

The critical ingredient is getting off your butt and doing something. It’s as simple as that. A lot of people have ideas, but there are few who decide to do something about them now. Not tomorrow. Not next week. But today. The true entrepreneur is a doer not a dreamer.

The best time to plant a tree is twenty years ago. The second best time is now.

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.

Assume you have 90 seconds with a new user before they decide to use your app or delete it.

Don’t take too much advice. Most people who have a lot of advice to give — with a few exceptions — generalize whatever they did. Don’t over-analyze everything. I myself have been guilty of over-thinking problems. Just build things and find out if they work.