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

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

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

If you fail, next time fail better.

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

The easiest person to deceive is yourself.

If you want to succeed, double your failure rate.

There is great wisdom in being able to realise that you don’t understand something before it goes too far.

Failure is NOT your destiny. Failure is the key to success.

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

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

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

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

There are no bad mistakes in maths, only discoveries.

Tomorrow is worth more than yesterday but less than today.