Carlos Castañeda, The Teachings of Don Juan: A Yaqui Way of Knowledge

"Seek and see all the marvels around you. You will get tired of looking at yourself alone, and that fatigue will make you deaf and blind to everything else. - Don Juan"

"All paths are the same: they lead nowhere. ... Does this path have a heart? If it does, the path is good; if it doesn't, it is of no use. Both paths lead nowhere; but one has a heart, the other doesn't. One makes for a joyful journey; as long as you follow it, you are one with it. The other will make you curse your life. One makes you strong; the other weakens you."