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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

I think, therefore I am.

Just stick with it, what seems hard now will one day be your warm up.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

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

I can is 100 times more important than IQ.

If you fail, next time fail better.

Fall down seven times, stand up eight.

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

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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

Procrastination is the thief of time and the enemy of success.

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

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