Evolution is an indispensable component of any satisfying explanation of our psychology.

Commerce, trade and exchange make other people more valuable alive than dead, and mean that people try to anticipate what the other guy needs and wants. It engages the mechanisms of reciprocal altruism, as the evolutionary biologists call it, as opposed to raw dominance.

The art of photography is all about directing the attention of the viewer.

There is no society ever discovered in the remotest corner of the world that has not had something that we would consider the arts. Visual arts - decoration of surfaces and bodies - appears to be a human universal.

Many artists and scholars have pointed out that ultimately art depends on human nature.

If you give people literacy, bad ideas can be attacked and experiments tried, and lessons will accumulate.

... people notice differences and expect every difference in form to convey some difference in meaning.