You're not in competition with anyone but yourself. Outdo your past, not other people.

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. 

A hero is no braver than an ordinary man, but he is braver five minutes longer.

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

The greatest mistake we make is living in constant fear that we will make one.

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

I think, therefore I am.

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

Don’t hang your targets after you’re done shooting.

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

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

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

99% of failures come from people who have the habit of making excuses.

Skills are built not born.

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