Quotes from book
Three Dialogues between Hylas and Philonous

Name: Three Dialogues between Hylas and Philonous
Author: George Berkeley

Three Dialogues between Hylas and Philonous, or simply Three Dialogues, is a 1713 book on metaphysics and idealism written by George Berkeley. Taking the form of a dialogue, the book was written as a response to the criticism Berkeley experienced after publishing A Treatise Concerning the Principles of Human Knowledge.Three important concepts discussed in the Three Dialogues are perceptual relativity, the conceivability/master argument and Berkeley's phenomenalism. Perceptual relativity argues that the same object can appear to have different characteristics depending on the observer's perspective. Since objective features of objects cannot change without an inherent change in the object itself, shape must not be an objective feature.

“Few men think; yet all have opinions.”

George Berkeley book Three Dialogues between Hylas and Philonous

Philonous to Hylas. The Second Dialogue. This appears in a passage first added in the third edition, (1734)
Three Dialogues between Hylas and Philonous (1713)

“I entirely agree with you, as to the ill tendency of the affected doubts of some philosophers, and fantastical conceit of others. I am even so far gone of late in this way of think, that I have quitted several of the sublime notions I had got in their schools for vulgar opinions. And I give it you on my word, since this revolt from metaphysical notions to the plain dictates of nature and common sense, I find my understanding strangely enlightened, so that I can now easily comprehend a great many thing which before were all mystery and riddle.”

George Berkeley book Three Dialogues between Hylas and Philonous

Said by Philonous (Berkeley) to Hylas in the opening of dialog 1 with reference to the recent surge philosophic endeavors (Locke, Newton, et al) that seemed to lead to skepticism about the existence of the world
Three Dialogues between Hylas and Philonous (1713)

“Doth the reality of sensible things consist in being perceived? or, is it something distinct from their being perceived, and that bears no relation to the mind?”

George Berkeley book Three Dialogues between Hylas and Philonous

Philonous to Hylas.
Three Dialogues between Hylas and Philonous (1713)

“That there is no such thing as what philosophers call material substance, I am seriously persuaded: but if I were made to see any thing absurd or skeptical in this, I should then have the same reason to renounce this, that I imagine I have now to reject the contrary opinion.”

George Berkeley book Three Dialogues between Hylas and Philonous

Philonous to Hylas.
Three Dialogues between Hylas and Philonous (1713)

“Since therefore, as well those degrees of heat that are not painful, as those that are, can exist in a thinking substance; may we not conclude that external bodies are absolutely incapable of any degree of heat whatsoever?”

George Berkeley book Three Dialogues between Hylas and Philonous

Philonous to Hylas. Hylas replies with, "So it seems".
Three Dialogues between Hylas and Philonous (1713)

“Seeing therefore they are both [heat and pain] immediately perceived at the same time, and the fire affects you only with one simple, or uncompounded idea, it follows that this same simple idea is both the intense heat immediately perceived, and the pain; and consequently, that the intense heat immediately perceived, is nothing distinct from a particular sort of pain.”

George Berkeley book Three Dialogues between Hylas and Philonous

Philonous to Hylas.
Three Dialogues between Hylas and Philonous (1713)