Instead of finding reasons why you can't, find reasons why you can.

If you fail, next time fail better.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

Your limitation - its only your imagination.

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

In order to become better than anybody else you must first become better than yourself.

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.

Lose an hour in the morning and you will spend all day looking for it.

Your attitude is everything. Pick a good one.

Pure mathematics is in its way, the poetry of logical ideas.

The temptation to quit will be the greatest when you are about to succeed

He who has begun his task is half-way done. Have the courage to begin!

It doesn’t matter where you start, it matters how you end

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

Do what you have always done and you will always be what you have always been