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

You cannot escape the responsibility of tomorrow by evading it today

Success can never happen without the journey (struggle).

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

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

Fall down seven times, stand up eight.

The road to success is like a staircase. If you want to succeed, double your failure rate

The master has failed more times than the beginner has even tried

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

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

There are no bad mistakes in maths, only discoveries.

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

Shoot for the moon and even if you miss you’ll land among the stars/

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

If you really want something you’ll find a way. If you don’t you’ll find an excuse.