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

The greatest enemy to human potential is your comfort zone

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

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

You cannot escape the responsibility of tomorrow by evading it today

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

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

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.

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

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

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.

Focus on progress, not perfection. Practise a little bit every day - little and often  Slow and steady wins the race.

The easiest person to deceive is yourself.

Failure is not the opposite of success, it is part of the success.