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.

Theodore Roosevelt

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.

Kai Fu Lee, World of Difference

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

Pablo Picasso

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

Randy Pausch, “The Last Lecture”

We are like butterflies who flutter for a day and think it is forever.

Carl Sagan

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

Albert Einstein

Books permit us to voyage through time, to tap the wisdom of our ancestors.

Carl Sagan

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

old African proverb

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


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

Dwight Eisenhower

Attitude is a little thing that makes a big difference.

Winston Churchill

People calculate too much and think too little.

Charlie Munger

Knowing yourself is the beginning of all wisdom.


If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.

Carl Sagan

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

John Allen Paulos

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

Henry David Thoreau

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.

Frank Herbert

Any sufficiently advanced technology is indistinguishable from magic.

Arthur C. Clarke

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