Work on your weaknesses until they are your strengths and work on your strengths until they are second nature.

Failure to prepare = preparing to fail

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

Success is a journey, not a destination.

Procrastination is the thief of time and the enemy of success.

I think, therefore I am.

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

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. 

Fall down seven times, stand up eight.

Time is your friend, impulse is your enemy.

We learn more from failure than we do from success.

Life is full of opportunities. With every opportunity that is missed, another one is born.

You cannot start the next chapter of your life if you keep re-reading the last one.

You can have results or excuses, not both

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