The most fundamental principle of the organized mind, the one most critical to keeping us from forgetting or losing things, is to shift the burden of organizing from our brains to the external world.

You'd think people would realize they're bad at multitasking and would quit. But a cognitive illusion sets in, fueled in part by a dopamine-adrenaline feedback loop, in which multitaskers think they are doing great.

The processing capacity of the conscious mind has been estimated at 120 bits per second.

When a language advances and adds a third term to its lexicon for color, the third term is always red.

For the artist, the goal of the painting or musical composition is not to convey literal truth, but an aspect of a universal truth that if successful, will continue to move and to touch people even as contexts, societies and cultures change. For the scientist, the goal of a theory is to convey "truth for now"--to replace an old truth, while accepting that someday this theory, too, will be replaced by a new "truth," because that is the way science advances.

We really are living in an age of information overload. Google estimates that there are 300 exabytes (300 followed by 18 zeros) of human-made information in the world today. Only four years ago there were just 30 exabytes. We've created more information in the past few years than in all of human history before us.

Americans spend more money on music than on sex or prescription drugs