Tomorrow is worth more than yesterday but less than today.

Tough times never last, but tough people do.

We learn more from failure than we do from success.

Don’t practice until you get it right, practice until you can’t get it wrong.

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

Procrastination makes easy things hard and hard things harder.

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. 

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

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

Your attitude is everything. Pick a good one.

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

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

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