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.

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

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

No matter how bad it gets, you’re still way ahead of those who haven’t even started.

A book a day keeps the stupidity away.

When you make a mistake, take another chance. Only when you choose not to do so do you fail.

You can have results or excuses, not both

Success can never happen without the journey (struggle).

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

Tomorrow is worth more than yesterday but less than today.

Tough times never last, but tough people do.

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.