“Greater physiological knowledge of the brain makes the existence of the soul less possible yet more probable, by the nature of the search.”

“Few if any seemed to have grasped the Principle of Reality; new knowledge leads always to yet more awesome mysteries. Greater physiological knowledge of the brain makes the existence of the soul less possible yet more probable by the nature of the search.”

“Understanding the physiological and neurological features of spiritual experiences should not be interpreted as an attempt to discredit their reality or explain them away. Rather, it demonstrates their physical existence as a fundamental, shared part of human nature. Spiritual experiences cannot be considered irrational, since we have seen that, given their physiological basis, experiencers' descriptions of them are perfectly rational... All human perceptions of material reality can ultimately be documented as chemical reactions in our neurobiology; all our sensations, thoughts, and memories are ultimately reducible to chemistry, yet we feel no need to deny the existence of the material world; it is not less real because our perceptions of it are biologically based... It is not rational to assume that the spiritual reality of core experiences is any less real than the more scientifically documentable material reality.”

“What we firmly believe, if it is true, is called knowledge, provided it is either intuitive or inferred (logically or psychologically) from intuitive knowledge from which it follows logically. What we firmly believe, if it is not true, is called error. What we firmly believe, if it is neither knowledge nor error, and also what we believe hesitatingly, because it is, or is derived from, something which has not the highest degree of self-evidence, may be called probable opinion. Thus the greater part of what would commonly pass as knowledge is more or less probable opinion.”

“Based on the law of probability Everything is possible because The sheer existence of possibility Confirms the existence Of impossibility.”

“It is not the amount of knowledge that makes a brain. It is not even the distribution of knowledge. It is the interconnectedness.”