So it is not a matter of whether it is possible to attain Buddhahood, or if it is possible to make a tile a jewel. But just to work, just to live in this world with this understanding is the most important point, and that is our practice. That is true zazen.

Shunryū Suzuki (1905-1971) Japanese Zen Buddhist master

Lecture in Los Altos, California (1 Sep 1967)
    (Source)