I think, therefore I am.

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

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

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

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

There are no shortcuts to any place worth going.

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

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

Success can never happen without the journey (struggle).

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

Go as far as you can see, when you get there, you’ll be able to see further

The power of reflection is the most powerful skill you’ll learn.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

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. 

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.