Success is not final, failure is not fatal.  It is the courage to continue that counts.

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

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. 

There is no elevator to success, you have to take the stairs.

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

The easiest person to deceive is yourself.

Your attitude is everything. Pick a good one.

It is never too late to turn an unproductive day into a productive one.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Don’t practice until you get it right, practice until you can’t get it wrong.

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

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

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

Tough times never last, but tough people do.

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.