I shall strive to bring helpful knowledge, good cheer and interesting facts for your present occupation and benefit.

If I succeed in accomplishing my purpose, even in part, my time has been well spent.

Thought Never Stops.

We have an unchallenged fact to rest our feet on, a fact that shall follow us through all the pages of this book, and that is: Our thoughts never stop, our brains never sleep. So then, we must consider that thought current, and reckon with it.

The motive power is turned on, and we must grasp the helm if we sail the sea of life successfully, baffling storms and avoiding rocks.

Scientific books are usually dry, uninviting reading; they lack the human interest. They are generally bloodless skeletons.

We shall try to weave science into new patterns and paint interesting pictures, so that science will attract and not repel.

This book is different in its suggestions, in its prescriptions, in its language, but it is universal with all scientific books, in that its aim is helpful truth.

We go by different routes, but our objective point is the same.

We will avoid technical names and symbols, and will speak the common language that the multitude understands.