Few among men are those who cross to the farther shore. The rest, the bulk of men, only run up and down the hither bank.
But those who act according to the perfectly taught Dhamma (moral code) will cross the realm of death, so difficult to cross.
Abandoning the dark way, let the wise man cultivate the bright path. Having gone from home to homelessness, let him yearn for that delight in detachment, so difficult to enjoy. Giving up sensual pleasures, with no attachment, let the wise man cleanse himself of defilements of the mind.
Those whose minds have reached full excellence in the factors of enlightenment, who, having renounced acquisitiveness, rejoice in not clinging to things — rid of cankers, glowing with wisdom, they have attained liberation (Nirvana) in this very life.
The Dhammapada, Chapter 6 (The Wise), Verses 85-89.