99% of failures come from people who have the habit of making excuses.

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. 

It is never too late to become what you might have been

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

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

The bad news is time flies, the good new is that you're the pilot.

The greatest enemy to human potential is your comfort zone

Don't fear failure, fear being in the same exact same place next year as you are now.

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

Patience is when you’re supposed to get mad, but you choose to understand

If you can understand just one thing thoroughly, then you will understand everything.

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

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

Shoot for the moon and even if you miss you’ll land among the stars/

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.