Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

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

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

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

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

Patience is when you’re supposed to get mad, but you choose to understand

If you want to succeed, double your failure rate.

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

Don’t confuse your path with your destination. Just because its stormy now doesn’t mean you are headed for failure.

We all make mistakes. What matters is how we choose to move forwards from them.

We learn more from failure than we do from success.

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

Success can never happen without the journey (struggle).

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

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