I can is 100 times more important than IQ.

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

Time is your friend, impulse is your enemy.

The greatest mistake we make is living in constant fear that we will make one.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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

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

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

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

Don’t hang your targets after you’re done shooting.

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

Everything you want is on the other side of fear

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

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

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