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

You can have results or excuses, not both

Do what you have always done and you will always be what you have always been

Tomorrow is worth more than yesterday but less than today.

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

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

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

99% of failures come from people who have the habit of making excuses.

Failure to prepare = preparing to fail

The journey of a thousand miles begins with one step. 

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

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

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

There are no bad mistakes in maths, only discoveries.

Hard work beats talent when talent doesn't work hard.