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

Tough times never last, but tough people do.

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

There are no shortcuts to any place worth going.

Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

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 journey of a thousand miles begins with one step.

We are all maths people : step 1 - do maths and step 2 - be a person. 

The greatest enemy to human potential is your comfort zone

The bad news is time flies, the good new is that you're the pilot.

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

I think, therefore I am.

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

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