Hard work - a two way street where you get exactly what you put in.

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

I can is 100 times more important than IQ.

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

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

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

You cannot escape the responsibility of tomorrow by evading it today

Nobody said it’d be easy, they just promised it would be worth it.

Run in the morning before your body figures out what you're doing

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

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

The greatest enemy to human potential is your comfort zone

Tomorrow is worth more than yesterday but less than today.

The journey of a thousand miles begins with one step. 

Whenever you find yourself doubting how far you can go, just remember how far you have come.