Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

Everything that happens was once a dream.

You can have results or excuses, not both

Try and do one thing each day that you would really rather not do.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

We learn more from failure than we do from success.

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. 

There are no bad mistakes in maths, only discoveries.

The journey of a thousand miles begins with one step.

No one starts out on top. You have to work your way up.

Tough times never last, but tough people do.

It always seems impossible until it's done.

If you want to succeed, double your failure rate.

We all have two lives. The second begins when we realise we only have one.