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

Nobody said it’d be easy, they just promised it would be worth it.

Tomorrow is worth more than yesterday but less than today.

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

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

Instead of finding reasons why you can't, find reasons why you can.

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

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

Mistakes have the power to turn you into something better than you were before.

Success is the sum of small repeated efforts, day in and day out.

Dreams don't work unless you do.

The journey of a thousand miles begins with one step.

There is great wisdom in being able to realise that you don’t understand something before it goes too far.

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

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