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

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

Don't fear failure, fear being in the same exact same place next year as you are now.

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

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

No one starts out on top. You have to work your way up.

If you want to succeed, double your failure rate.

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

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

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

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

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

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

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