You can have results or excuses, not both

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

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

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

Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

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

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

The greatest enemy to human potential is your comfort zone

Hard work - a two way street where you get exactly what you put in.

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.

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

Failure to prepare = preparing to fail

Fall down seven times, stand up eight.

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

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