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. 

We learn more from failure than we do from success.

The greatest enemy to human potential is your comfort zone

The master has failed more times than the beginner has even tried

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

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

The wise person knows that no answer is also an answer

Success can never happen without the journey (struggle).

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

Failure is NOT your destiny. Failure is the key to success.

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

Never underestimate the importance of small steps. small steps = big changes. 

A book a day keeps the stupidity away.

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