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

MATHS = Mistakes Allow Thinking To Happen

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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

If you can understand just one thing thoroughly, then you will understand everything.

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

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. 

You're not in competition with anyone but yourself. Outdo your past, not other people.

It always seems impossible until it's done.

The journey of a thousand miles begins with one step.

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

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

The easiest person to deceive is yourself.

Shoot for the moon and even if you miss you’ll land among the stars/

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.