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

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

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

Just stick with it, what seems hard now will one day be your warm up.

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

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

We learn more from failure than we do from success.

The master has failed more times than the beginner has even tried

Tough times never last, but tough people do.

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

Time is your friend, impulse is your enemy.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

Procrastination makes easy things hard and hard things harder.

Never underestimate the importance of small steps. small steps = big changes. 

Hard work beats talent when talent doesn't work hard.