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

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

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. 

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

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

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

Skills are built not born.

I can is 100 times more important than IQ.

The greatest enemy to human potential is your comfort zone

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

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

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

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

We learn more from failure than we do from success.