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

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

The wise person knows that no answer is also an answer

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

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

Practice like you’ve never won. Perform like you’ve never lost.

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

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.

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

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

The master has failed more times than the beginner has even tried

If you want to succeed, double your failure rate.

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

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