"It is alone that part of the external universe which we call material which acts on man through his senses — that part of which we ordinarily feel our knowledge to be the surest; but in reality, strangely enough, as will soon appear, this is one of the aspects of the external world, of which we can know nothing."

“Only a personal experience of it, or a prolonged study of men who have passed into the new life, will enable us to realize what this actually is; but it has seemed to the present writer that to pass in review, even briefly and imperfectly, instances in which the condition in question has existed would be worth while.”

“I dedicate this book to the man who inspired it — to the man who of all men past and present that I have known has the most exalted moral nature — to Walt Whitman.”

“Our descendants will sooner or later reach, as a race, the condition of cosmic consciousness, just as, long ago, our ancestors passed from simple consciousness into self consciousness.”

“Only a little while now and we shall be again together and with us those other noble and well-beloved souls gone before. I am sure I shall meet you and them; that you and I shall talk of a thousand things and of that unforgettable day and of all that followed it; and that we shall clearly see that all were parts of an infinite plan which was wholly wise and good.”

“Notes on Bucke at McGill University”

“Man reacts upon and toward the external universe in three ways, namely, by his active nature ; by his intellectual nature ; by his moral nature — that is, he acts upon it, thinks about it, and feels toward it.”