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. 

Failure to prepare = preparing to fail

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

The temptation to quit will be the greatest when you are about to succeed

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

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

Procrastination makes easy things hard and hard things harder.

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

We learn more from failure than we do from success.

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

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

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Go as far as you can see, when you get there, you’ll be able to see further

99% of genius comes from hard work, the remaining 1% comes from innate talent