I think, therefore I am.

We learn more from failure than we do from success.

Everything you want is on the other side of fear

Success is the sum of small repeated efforts, day in and day out.

Don't be afraid to take an unfamiliar path.  Sometimes they're the ones that lead you to the best places.

The greatest mistake we make is living in constant fear that we will make one.

Fall down seven times, stand up eight.

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. 

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.

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

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

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

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

Hope might be a good breakfast, but it makes a very poor dinner

Run in the morning before your body figures out what you're doing