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

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

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

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

It always seems impossible until it's done.

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

Start, struggle, fail, fix and learn. Repeat.

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

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.

I think, therefore I am.

Everything that happens was once a dream.

Mistakes have the power to turn you into something better than you were before.

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

The bad news is time flies, the good new is that you're the pilot.

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