“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.”
First Words
Cosmic Consciousness (1901)
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Richard Maurice Bucke 9
prominent Canadian psychiatrist in the late 19th century 1837–1902Related quotes

Quoted, This Side of Paradise (1920)

The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.
Source: Break-Out from the Crystal Palace (1974), p. 93
Source: The Responsible Self: An Essay in Christian Moral Philosophy (1963), pp. 60-61

Lecture XX, "Conclusions"
1900s, The Varieties of Religious Experience (1902)
Context: Both thought and feeling are determinants of conduct, and the same conduct may be determined either by feeling or by thought. When we survey the whole field of religion, we find a great variety in the thoughts that have prevailed there; but the feelings on the one hand and the conduct on the other are almost always the same, for Stoic, Christian, and Buddhist saints are practically indistinguishable in their lives. The theories which Religion generates, being thus variable, are secondary; and if you wish to grasp her essence, you must look to the feelings and the conduct as being the more constant elements. It is between these two elements that the short circuit exists on which she carries on her principal business, while the ideas and symbols and other institutions form loop-lines which may be perfections and improvements, and may even some day all be united into one harmonious system, but which are not to be regarded as organs with an indispensable function, necessary at all times for religious life to go on. This seems to me the first conclusion which we are entitled to draw from the phenomena we have passed in review.

As quoted in "A Visit to Nikola Tesla" by Dragislav L. Petković in Politika (April 1927); also in Tesla, Master of Lightning (1999) by Margaret Cheney, Robert Uth, and Jim Glenn, p. 82

"To the Working People," Complete Works, trans. Leo Wiener, Vol 24, p. 129 (1905)

W. M. Torrens Memoirs of William Lamb, Second Viscount Melbourne (1890), p. 234
Attributed

“That which is produced with intention has passed over from non-existence to existence.”
Source: Guide for the Perplexed (c. 1190), Part III, Ch.13