Time is your friend, impulse is your enemy.

Everything you want is on the other side of fear

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.

We are all maths people : step 1 - do maths and step 2 - be a person. 

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

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

Instead of finding reasons why you can't, find reasons why you can.

Yesterday is history, tomorrow is a mystery, but today is a gift—that's why it's called 'the present

Don’t compare yourself to others. Compare yourself to the person you were yesterday.

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

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

We learn more from failure than we do from success.

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

It always seems impossible until it's done.

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