99% of genius comes from hard work, the remaining 1% comes from innate talent

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

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

It always seems impossible until it's done.

It is never too late to become what you might have been

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

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

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

Life is full of opportunities. With every opportunity that is missed, another one is born.

Your attitude is everything. Pick a good one.

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. 

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

Start, struggle, fail, fix and learn. Repeat.

Procrastination is the thief of time and the enemy of success.