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

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Practice makes comfort. Expand your experiences regularly so every stretch won't feel like your first.

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

We all have two lives. The second begins when we realise we only have one. 

I have not failed, I've just found 10,000 ways that won't work.

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.

Success can never happen without the journey (struggle).

We learn more from failure than we do from success.

Your attitude is everything. Pick a good one.

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

You can hire a tutor but you can't hire someone to practice for you.

The journey of a thousand miles begins with one step.

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

Dreams don't work unless you do.