The author takes us on a journey where he uses the science of Charle's Darwin's evolutionary theory to identify the three basic instincts vital to the continued survival of a species, how these instincts influenced our evolutionary development and how they finally lead to our common sense, which is then used to create a practical belief system.
The second part of the book deals with time and through the use of simple, elegant language, Einstein's special and general theories of relativity are effortlessly explained, enabling their message to be easily understood. The differences between our everyday 'earth' time and this time of physics is examined and clarified, giving us a better perspective of this constant companion to our contemporary lives, time.