Mathematicians may be extraordinary thinkers, but they occasionally have something inspirational or profound to say as well, and many of those sayings have been collected in this book. It is clear that the author considers this a labor of love, as the amount of research that had to be done to put this book together must have been very substantial. The quotes are organized into categories such as "the creative process in mathematics", "mathematics and the arts", "about mathematicians", "anecdotes and humor" and "mathematics education." This makes it much easier to find a quote where the point coincides with the one you want to make.
If there was ever a mathematics book designed for browsing, it is this one. Find a copy and spend some time looking through it. It is an effort well spent.