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. 

99% of genius comes from hard work, the remaining 1% comes from innate talent

Hard work beats talent when talent doesn't work hard.

The greatest enemy to human potential is your comfort zone

No one starts out on top. You have to work your way up.

I think, therefore I am.

"I" not them. Be the best version of you.

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

You'll never change your life until you change something you do daily. The secret to success and change in found in your daily routine.

Time is your friend, impulse is your enemy.

There are no shortcuts to any place worth going.

Fall down seven times, stand up eight.

Knowledge is of no value unless you put it into practice.

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

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.