Instead of finding reasons why you can't, find reasons why you can.

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

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Failure to prepare = preparing to fail

The journey of a thousand miles begins with one step. 

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

Hard work - a two way street where you get exactly what you put in.

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

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

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

The wise person knows that no answer is also an answer

It always seems impossible until it's done.

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

MATHS = Mistakes Allow Thinking To Happen