For those who wish to change the world for the better, It is well to remember the relations between right and wrong. For if you wish to add a right you must also add a wrong; And if you wish to take away a wrong you must also take away a right. For their relationship is such that one does not exist without the other.
I rediscovered this when going through some of my old papers. I wrote it in 1969, just after I took a comparative religions class (the same semester I took geology 101, my then unbeknownst career). This was written to express my then understanding of Taoism and the yin/yang concept. I carry both geology and the dao with me today (both lower case).