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. 

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

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

If you really want something you’ll find a way. If you don’t you’ll find an excuse.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Hard work - a two way street where you get exactly what you put in.

We learn more from failure than we do from success.

He who has begun his task is half-way done. Have the courage to begin!

If you want to succeed, double your failure rate.

Run in the morning before your body figures out what you're doing

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.

Don't fear failure, fear being in the same exact same place next year as you are now.

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

Skills are built not born.

Pure mathematics is in its way, the poetry of logical ideas.