If you want to succeed, double your failure rate.

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

Your attitude is everything. Pick a good one.

Everything that happens was once a dream.

Life is full of opportunities. With every opportunity that is missed, another one is born.

The easiest person to deceive is yourself.

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

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

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

There are no bad mistakes in maths, only discoveries.

Success is a journey, not a destination.

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

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

I have not failed, I've just found 10,000 ways that won't work.

99% of failures come from people who have the habit of making excuses.