The foundation for the Butterfly Effect is that a little modify in one condition can outcome in essential distinction in a later condition. (joyrs.com)
Thus Holloway is able to preserve the essential distinction between matter and spirit, body and soul, yet maintain the unity of the nature and personality of Man. (faith.org.uk)
In his interpretation of Psalm 1 in Right and Wrong, Buber makes an essential distinction between the «wicked» man and the «sinner» corresponding to the two stages of evil which we have discussed. (religion-online.org)