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

We all have two lives. The second begins when we realise we only have one. 

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

Your attitude is everything. Pick a good one.

It is never too late to become what you might have been

The gift of imperfection - let go of who you think you're supposed to be and embrace who you are.

There is no elevator to success, you have to take the stairs.

The greatest enemy to human potential is your comfort zone

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.

He who has begun his task is half-way done. Have the courage to begin!

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

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

The journey of a thousand miles begins with one step. 

Whenever you find yourself doubting how far you can go, just remember how far you have come.

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