„Some truths there are so near and obvious to the mind that a man need only open his eyes to see them.“ (Of the Principles of Human Knowledge, §6) #Berkeley #truth #mind
„It is very obvious, upon the least inquiry into our thoughts, to know whether it is possible for us to understand what is meant by the ABSOLUTE EXISTENCE OF SENSIBLE OBJECTS IN THEMSELVES, OR WITHOUT THE MIND. To me it is evident those words mark out either a direct contradiction, or else nothing at all. And to convince others of this, I know no readier or fairer way than to entreat they would calmly attend to their own thoughts; and if by this attention the emptiness or repugnancy of those expressions does appear, surely nothing more is requisite for the conviction. It is on this therefore that I insist, to wit, that the ABSOLUTE existence of unthinking things are words without a meaning, or which include a contradiction. This is what I repeat and inculcate, and earnestly recommend to the attentive thoughts of the reader.“ (Of the Principles of Human Knowledge, §24) #Berkeley #existence #objects #mind
„By observing how ideas become general we may the better judge how words are made so. And here it is to be noted that I do not deny absolutely there are general ideas, but only that there are any ABSTRACT GENERAL IDEAS“. (Intro., §12) #Berkeley #AbstractGeneralIdeas
„The Object of Geometry, its not being sufficiently understood, cause of Difficulty and useless Labour in that Science.
By this time, I suppose, ‚tis clear that neither Abstract, nor Visible Extension makes the Object of Geometry. The not discerning of which might, perhaps, have created some Difficulty, and useless Labour in Mathematics. Sure I am, that somewhat relating thereto has occur’d to my Thoughts, which, tho‘ after the most anxious and repeated Examination I am forced to think it true, doth, nevertheless, seem so far out of the common road of Geometry, that I know not, whether it may not be thought Presumption, if I shou’d make it publick in an Age, wherein that Science hath receiv’d such mighty Improvements by new Methods; great Part whereof, as well as of the Ancient Discoveries, may perhaps lose their Reputation, and much of that Ardor, with which Men study the Abstruse and Fine Geometry be abated, if what to me, and those few to whom I have imparted it, seems evidently True, shou’d really prove to be so.“ (no. CXL) #Berkeley #geometry #mathematics
„Moreover it is evident, that no Idea which is not it self perceiv’d, can be to me the means of perceiving any other Idea. If I do not perceive the Redness or Paleness of a Man’s Face themselves, it is impossible I shou’d perceive by them the Passions which are in his Mind.“ (no. X) #Berkeley #idea