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

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

Fall down seven times, stand up eight.

It always seems impossible until it's done.

You cannot escape the responsibility of tomorrow by evading it today

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

Tough times never last, but tough people do.

Dreams don't work unless you do.

The road to success is like a staircase. If you want to succeed, double your failure rate

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

He who has begun his task is half-way done. Have the courage to begin!

Everything you want is on the other side of fear

The easiest person to deceive is yourself.

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

You can have results or excuses, not both