Critically examine Berkeley s doctrine that esse is percipi to be is to be perceived
... By reflecting on these ideas, Berkeley arrived at the radical conclusion that existence outside of the mind was impossible, i. ... Berkeley maintained that these qualities were also “to wit in the mind, and nowhere else”. Berkeley’s rejection of what he called Locke’s “materialism” was based on the argument that one cannot conceive of an object as possessing only primary qualities. ... Therefore, the basis of Berkeley’s “immaterialism” or “idealism” is that the only things in true existence are non-material (or “mental”), i. ... the mind and those ideas which are perceived or supported by it, and the mind itself (or spirits and ideas) are fundamental to the existence of the physical world. ... In fact, his entire doctrine is often seen as absurd by those unaccustomed to philosophical speculation. ... By this way of thinking, Berkeley’s ideas that the idea sense-data must be, at least in part, “in” the mind is largely valid. Of course, in order to understand Berkeley’s argument we must understand his concept of “ideas”. To him, and idea was anything which is immediately known, and he gives this term to Locke’s “sensible qualities”. Consequently, those objects of experience (tables, chairs etc) are merely collections of ideas, and Berkeley argues against there being any grounds for supposing that there is anything real about the tree except that which is perceived of it. ... Berkeley refutes this claim with the counterintuitive idea that the continued existence of an object is due to the fact that God continues to perceive it. This is in keeping with the religious motivation of Berkeley – he consistently maintained that belief in matter has “furnished the atheists and infidels of all ages, with the most plausible argument against a Creation”.