It is never too late to turn an unproductive day into a productive one.

We all make mistakes. What matters is how we choose to move forwards from them.

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

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

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

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

Tough times never last, but tough people do.

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

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

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

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

Never underestimate the importance of small steps. small steps = big changes. 

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. 

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

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