✔ 最佳答案
係一個好難答既問題
第一
自己知道自己存在,這個係肯定既, descarte用systematic doubt推論出i think therefore i am(我思固我在),即係話你要懷疑一樣野是否真實的存在,即使你懷疑所有野,你自己都要存在先有得懷疑,所以你一定係存在,這個我諗大家都知喇,唔多講
但係...
自己存在又如何?? 因為我覺得你所問既'算不算是真實的存在',係問 existence of matter,而這係最難既, 樓上有人講到Bishop Berkeley, 佢話一樣野要被人感知才算係存在,其實, Berkeley 係idealism,佢係唯心主義既, 佢唔承認existence of matter,只係承認sense-data (即係我地感知到既野),個世界可以只係得mind同ideas存在...
舉個例,這個例其實係o係Bertrand Russell既 the problems of philosophy度既,e.g. When we see a table,個問題就係whether there's a REAL TABLE independent of our sense-data (collected from our sensation)? Berkeley佢只係承認有sense-data,個table可以係我地個mind construct出黎既一個idea,而唔係'真實的存在'
咁問題就黎喇....
1. 因為有一個可能性,就係只有自己既mind exist,而個outer physical world根本係你自己個mind contruct出黎,you are alone in the desert of the real....
2. 其實唔可以話一樣野要能夠被人感知先可以存在, Russell話: We can never truly judge that something with which we are not acquainted exist,即係我地唔可以真正地judge一樣我地知悉既野是否存在, 因為好多未被知悉既野既存在都係有價值既,佢地既價值就係等人去發掘,同埋滿足人既求知慾,所以我地唔可以judge一個不能被感知既apple是否存在...
可能我唔buy唯心主義啦....
不過我必須承認,其實係prove唔到existence of matter, 'we can never prove the existence of things other than ourselves and our experience', 而我既結論係:
自己既存在, 可証實
真實的存在,如果你係指existence of matter (in contrast to minds and ideas), 不可証,只可以某程度話存在既可能性好高...
2007-05-22 13:40:28 補充:
打都打到手軟,寫得有d亂,不過希望你明我講乜啦...
參考: myself + Bertrand Russell's books