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

You cannot start the next chapter of your life if you keep re-reading the last one.

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

Tough times never last, but tough people do.

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

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. 

There is great wisdom in being able to realise that you don’t understand something before it goes too far.

Knowledge is of no value unless you put it into practice.

Failure to prepare = preparing to fail

Life is full of opportunities. With every opportunity that is missed, another one is born.

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

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

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

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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