Time is your friend, impulse is your enemy.

A hero is no braver than an ordinary man, but he is braver five minutes longer.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

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. 

The greatest glory in loving lies not in never falling, but in rising every time we fall.

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

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

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

Dreams don't work unless you do.

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

Hope might be a good breakfast, but it makes a very poor dinner

Try and do one thing each day that you would really rather not do.

99% of genius comes from hard work, the remaining 1% comes from innate talent

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

If you want to succeed, double your failure rate.