"The range of human knowledge today is so great that we're all specialists and the distance between specializations has become so great that anyone who seeks to wander freely between them almost has to forego closeness with the people around him."
"To live only for some future goal is shallow. It's the sides of the mountain that sustain life, not the top."
"In the high country of the mind one has to become adjusted to the thinner air of uncertainty..."
"The study of the art of motorcycle maintenance is really a miniature study of the art of rationality itself. Working on a motorcycle, working well, caring, is to become part of a process, to achieve an inner peace of mind. The motorcycle is primarily a mental phenomenon."
"Like those in the valley behind us, most people stand in sight of the spiritual mountains all their lives and never enter them, being content to listen to others who have been there and thus avoid the hardships."