“It is impossible to imagine existence in the absence of subjective sensation we call reflective consciousness.”
The Origin of Humankind (1994)
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Richard Leakey 39
Kenyan paleoanthropologist, conservationist, and politician 1944Related quotes

Quote from Les Maitres d'Autrefois / The Old Masters, Eugène Fromentin; 1948, p. 108; as cited in 'Dutch Painting of the Golden Age', http://www.open.edu/openlearn/history-the-arts/dutch-painting-the-golden-age/content-section-2 OpenLearn

p 48
The Undiscovered Self (1958)

“The eyes are the reflection of the emotions, they reveal all the sensations.”
Original: (it) Gli occhi sono il riflesso delle emozioni, rivelano tutte le sensazioni.
Source: prevale.net

“Do you know what we call opinion in the absence of evidence? We call it prejudice.”
Source: State of Fear

“It's impossible to defend oneself in the absence of goodwill”
Source: Amerika

“Sensation is a subjective image of the objective world.”
Source: Materialism and Empirio-Criticism (1908), p. 116

Materialism and Empirio-Criticism (1908)

Source: The Foundations of Normal and Abnormal Psychology (1914), p. 106