Procrastination makes easy things hard and hard things harder.

You can hire a tutor but you can't hire someone to practice for you.

I can is 100 times more important than IQ.

I have not failed, I've just found 10,000 ways that won't work.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

The bad news is time flies, the good new is that you're the pilot.

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

Success is the sum of small repeated efforts, day in and day out.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

We all have two lives. The second begins when we realise we only have one. 

There is no elevator to success, you have to take the stairs.

The journey of a thousand miles begins with one step. 

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Success is not final and failure is not fatal. It is the courage to continue that counts.