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

You can hire a tutor but you can't hire someone to practice for you.

The greatest enemy to human potential is your comfort zone

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

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

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

Pure mathematics is in its way, the poetry of logical ideas.

If you fail, next time fail better.

Lose an hour in the morning and you will spend all day looking for it.

Fall down seven times, stand up eight.

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

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

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

Hope might be a good breakfast, but it makes a very poor dinner

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