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. 

Everything you want is on the other side of fear

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

The greatest enemy to human potential is your comfort zone

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.

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 think, therefore I am.

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

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

You can have results or excuses, not both

1.00³⁶⁵=1 and 1.01³⁶⁵=37.7. Doing nothing at all versus small steps at a time. 

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

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.

When you make a mistake, take another chance. Only when you choose not to do so do you fail.