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

Success is a journey, not a destination.

A book a day keeps the stupidity away.

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

The master has failed more times than the beginner has even tried

In order to become better than anybody else you must first become better than yourself.

Knowledge is of no value unless you put it into practice.

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

No one starts out on top. You have to work your way up.

Fall down seven times, stand up eight.

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

Everything you want is on the other side of fear

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

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