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. 

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

Tough times never last, but tough people do.

Everything you want is on the other side of fear

We all have two lives. The second begins when we realise we only have one. 

In order to become better than anybody else you must first become better than yourself.

Just stick with it, what seems hard now will one day be your warm up.

Nothing is impossible if you want it badly enough. Impossible = I'm possible.

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

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

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

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

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

You cannot escape the responsibility of tomorrow by evading it today

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