Mind as system

"The phenomenon of mind is neither an intrusion into the cosmos from some outside agency, nor the emergence of something out of nothing. Mind is but the internal aspect of the connectivity of systems within the matrix. It is there as a possibility within the undifferentiated continuum and evolves into more explicit forms as the matrix differentiates into relatively discrete, self-maintaining systems. The mind as knower is continuous with the rest of the universe as known. Hence in this metaphysics there is no gap between subject and object... these terms refer to arbitrarily abstracted entities."

from 'Introduction to Systems Philosophy' by Ervin Laszlo quoted in 'Mutual Causality in Buddhism and General Systems Theory' by Joanna Macy

See also my favourite quote by Nikola Tesla I've mentioned before:

"Really, we are something different, like waves in subjective time and space and when these waves disappear, nothing remains of us. There is no personality. We cannot see that waves in the ocean have individuality. There is only an illusionary sequence of waves, which go one after another. We are not the same as that which was yesterday; I am only a sequence of relative existences, which are not similar. This sequence is the thing which creates an effect of continuity, not my subjective and mistaken understanding of my real life."