Distinguish Clearly These Bitter Yet Fertile Human Truths, Flesh of our Flesh, and Admit Them Heroically

The mind of man can perceive appearances only, and never the essence of things

and not all appearances but only the appearances of matter

and more narrowly still: not even these appearances of matter, but only relationships between them

and these relationships are not real and independent of man, for even these are his creations

and they are not the only ones humanly possible, but simply the most convenient for his practical and perceptive needs

Source: Saviors of God, By Nikos Kazantzakis