We all have two lives. The second begins when we realise we only have one. 

The wise person knows that no answer is also an answer

It is never too late to become what you might have been

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

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

You can be shown the path, but only you can make the first step.

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

If you want to succeed, double your failure rate.

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

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

A book a day keeps the stupidity away.

Your limitation - its only your imagination.

Failure is not the opposite of success, it is part of the success.

Dreams don't work unless you do.

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