You're not in competition with anyone but yourself. Outdo your past, not other people.

Time is your friend, impulse is your enemy.

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

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

Tough times never last, but tough people do.

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

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

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

We learn more from failure than we do from success.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

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. 

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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Skills are built not born.