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

Don't fear failure, fear being in the same exact same place next year as you are now.

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

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

Skills are built not born.

The wise person knows that no answer is also an answer

You cannot escape the responsibility of tomorrow by evading it today

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.

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

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

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

We learn more from failure than we do from success.

Fall down seven times, stand up eight.

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

Try and do one thing each day that you would really rather not do.