The temptation to quit will be the greatest when you are about to succeed

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

I think, therefore I am.

Skills are built not born.

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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 can hire a tutor but you can't hire someone to practice for you.

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

The journey of a thousand miles begins with one step. 

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

Hard work beats talent when talent doesn't work hard.

Time is your friend, impulse is your enemy.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

The greatest enemy to human potential is your comfort zone

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