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

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

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

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

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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. 

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

Everything you want is on the other side of fear

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

Dreams don't work unless you do.

If you want to succeed, double your failure rate.

Knowledge is of no value unless you put it into practice.

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

Run in the morning before your body figures out what you're doing

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