Greed for enlightenment and immortality is no different than greed for material wealth. It is self-centered and dualistic, and thus an obstacle to true attainment. Therefore these states are never achieved by those who covet them; rather, they are the reward of the virtuous.
LaoziFree from desire, you realize the mystery, caught in the desire, you see only the manifestations.
LaoziThose who know do not speak; Those who speak do not know. Stop up the openings, Close down the doors, Rub off the sharp edges. Unravel all confusion. Harmonize the light, Give up contention: This is called finding the unity of life.
Laozi