If you can understand just one thing thoroughly, then you will understand everything.

Everything you want is on the other side of fear

The journey of a thousand miles begins with one step.

The bad news is time flies, the good new is that you're the pilot.

The greatest enemy to human potential is your comfort zone

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

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

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

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. 

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

Never underestimate the importance of small steps. small steps = big changes. 

I think, therefore I am.

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

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