Far better it is to dare mighty things, to win glorious triumphs, even though checkered by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows neither victory nor defeat.

We cannot change the cards we are dealt, just how we play the hand.

Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every superstar, every supreme leader, every saint and sinner in the history of our species lived there-on a mote of dust suspended in a sunbeam.

If you want to go fast, go alone. If you want to go far, bring others along.

Imagine two worlds, one with you and one without you. What's the difference between the two worlds? Maximize the difference. That's the meaning of your life.

Go off and do something wonderful

Learn the rules like a pro, so you can break them like an artist.

The important thing is not to stop questioning. Curiosity has its own reason for existing.

Education is the kindling of a flame, not the filling of a vessel.

In a conflict between the heart and the brain, follow your heart.

What is important is seldom urgent, and what is urgent is seldom important.

People calculate too much and think too little.

Knowing yourself is the beginning of all wisdom.

The one who plants trees, knowing that he will never sit in their shade, has at least started to understand the meaning of life

Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security.

It's not enough to be busy; so are the ants. The question is: what are we busy about?

I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.

Strength does not come from physical capacity. It comes from an indomitable will.

Any sufficiently advanced technology is indistinguishable from magic.

Don't judge each day by the harvest you reap but by the seeds that you plant.