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 master has failed more times than the beginner has even tried

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

There is no elevator to success, you have to take the stairs.

It is never too late to turn an unproductive day into a productive one.

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

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

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

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

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

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

Our fixed mindset builds our cage, fear keeps us in it.

There are no shortcuts to any place worth going.

The greatest enemy to human potential is your comfort zone