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.

If you fail, next time fail better.

There is no elevator to success, you have to take the stairs.

Learn To Step Outside Of Your Comfort Zone. Outside your comfort zone is where the magic happens

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

The greatest mistake we make is living in constant fear that we will make one.

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

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

Skills are built not born.

Don’t hang your targets after you’re done shooting.

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

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

Tomorrow is worth more than yesterday but less than today.

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