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

We learn more from failure than we do from success.

Pure mathematics is in its way, the poetry of logical ideas.

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

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

We learn more from failure than we do from success.

There are no bad mistakes in maths, only discoveries.

The road to success is like a staircase. If you want to succeed, double your failure rate

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

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

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

I had no time is no excuse. 1 hour is 4% of your day and 1 minute is 0.34 % of your day.

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

Do Not Be Afraid To Make Mistakes. Each mistake teaches us something.

It always seems impossible until it's done.