It always seems impossible until it's done.

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

The greatest glory in loving lies not in never falling, but in rising every time we fall.

Hard work always pays off - it is not a question of if you will get there, but WHEN you will get there

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

The greatest enemy to human potential is your comfort zone

If you want to succeed, double your failure rate.

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

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

Twenty years from now you will be more disappointed by the things you didn’t do than the things you did do

Success can never happen without the journey (struggle).

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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

There are no bad mistakes in maths, only discoveries.

Just stick with it, what seems hard now will one day be your warm up.