When you read for fun and relaxation, you never know what you will stumble across. It is one thing to read as part of research on a particular subject, like hunting up authority for a legal proposition, which we all have done quite often. Then you know, more or less, what you are looking for. You may or may not like what you find, but at least your aim, your objective, is clear.

It is quite another thing to read as a form of leisure, a free play of the mind, and discover something totally unexpected. When that happens, you are surprised—happily—and taken aback. You learn once again the meaning of serendipity. It is one of the great pleasures of reading.