"Look at every path closely and deliberately. Try it as many times as you think necessary. Then ask yourself, and yourself alone, one question . . . 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."
- Carlos Castaneda, was a Peruvian-born American anthropologist and author.