Whenever you find yourself doubting how far you can go, just remember how far you have come.

Your limitation - its only your imagination.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

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

Don’t hang your targets after you’re done shooting.

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

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

There is no elevator to success, you have to take the stairs.

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

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

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

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

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.